Model: 251288

Hexagon Plain Nut

Properties:

Thread Class

Thread Direction

Right-hand

Nut Style

Hexagon

Nut Height

Between 0.365 inches and 0.385 inches

Width Across Flats

Between 0.6750 inches and 0.6875 inches

Thread Series

Unf

Thready Qty Per Inch (tpi)

Hardness Rating

121.0 brinell standard

Thread Size

0.438 inches

Bearing Surface Type

Chamfered or washer faced

Material

Steel

Surface Treatment

Cadmium and chromate

Surface Treatment Specification

Qq-p-416, type 2, cl 3 federal specification single treatment response

NSN

5310-00-880-7745

Part Number

251288

Description

Nut,plain,hexagon

CAGE

H0001

A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

Part 251288 NSN 5310-00-880-7745

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

01857

FIIG:

A021A0

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

2.0000lbs

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

WCC:

573

TCC:

SHC:

ACC:

Construction Materials

End Items End applications NSN 5310-00-880-7745 is a component of

Aircraft Refueler R-14 Vehicle
Fire Pumps
An/pps-5b Radar Set
C-2a (reprocured) Aircraft
Lightweight 3d (an/tps-59) Radar Set
Model Xm1117 Armored Security Vehicle
Mh-53e Helicopter
Fire/crash P8 Truck
000898287
Transfer Transmission Assembly
010469666
Fire Fighting Truck
010874317
Annular Ball Bearing
009030899
Fork Lift Truck
010347537
Fire Fighting Truck
010134201
Fire Fighting Truck
010874317
Annular Ball Bearing
009733366
Guided Missile Components Shipping And Storage Container
014186654
Full Tracked Personnel Carrier
011368745
Cargo Carrier
009269488
Decontaminating Apparatus
011431213
Tank Type Water Distributor
000017855
Transfer Transmission Assembly
010969356
Cargo Carrier
010253733
Truck Tractor
005747598
Low Speed Full Tracked Tractor
003474520
Mechanical Transmission
008013575
Parachute Deployment Bag
011933621
Fire Fighting Truck
002523559
Fire Fighting Truck
001317745
Diesel Engine
000182021
Truck Mounted Crane
001727592
Hydraulic Transmission
001226826
Full Tracked Recovery Vehicle
001226826
Full Tracked Recovery Vehicle
000986803
Transmission Power Takeoff
000756546
Stake Trailer
013733625
Fork Lift Truck
013733625
Fork Lift Truck
011504795
Motorized Road Grader
009534890
Warehouse Wheeled Tractor
011504795
Motorized Road Grader
007061136
Transmission Power Takeoff
010808521
Rotary Compressor Unit
013733625
Fork Lift Truck
002354674
Fork Lift Truck
013445480
Tankless Type Liquid Bituminous Material Distributor
003752972
Cargo Barge
003476173
Warehouse Wheeled Tractor
003476173
Warehouse Wheeled Tractor
013445480
Tankless Type Liquid Bituminous Material Distributor
010461383
Hydraulic System Components Test Stand
002354674
Fork Lift Truck
010657232
Reciprocating Compressor Unit
010143855
Driving Automotive Axle Assembly
004655869
Fork Lift Truck
006025006
Scoop Type Loader
010543833
Fork Lift Truck
010543833
Fork Lift Truck
011431212
Tank Type Water Distributor
008075781
Driving Automotive Axle Assembly
008844833
Vehicular Mechanical Transmission
002295673
Transmission Power Takeoff
009357864
Fork Lift Truck
014125345
Warehouse Crane Truck
009357867
Fork Lift Truck
009357867
Fork Lift Truck
010284390
Tank Type Bituminous Material Distributor
010284390
Tank Type Bituminous Material Distributor
005858191
Reciprocating Compressor Unit
010284390
Tank Type Bituminous Material Distributor
010284390
Tank Type Bituminous Material Distributor
013038909
Masonry Abrasive Disk Saw
004637089
Aircraft Cargo Loading-unloading Truck
002519495
Engine Shipping And Storage Container
009261066
Warehouse Wheeled Tractor
010549779
Truck Mounted Crane
004901859
Centrifugal Pump Unit
001846044
Centrifugal Pump
009261066
Warehouse Wheeled Tractor
006025013
Scoop Type Loader
007061137
Transmission Power Takeoff
001024236
Aircraft Cargo Loading-unloading Truck
011399859
Low Speed Full Tracked Tractor
009339980
Test Facilities Kit
005747597
Low Speed Full Tracked Tractor
001974935
Warehouse Crane Truck
010284390
Tank Type Bituminous Material Distributor
011399859
Low Speed Full Tracked Tractor
010284390
Tank Type Bituminous Material Distributor
010284390
Tank Type Bituminous Material Distributor
001974935
Warehouse Crane Truck
010284390
Tank Type Bituminous Material Distributor
013696081
Cargo Carrier
011287535
Aircraft Cargo Loading-unloading Truck
008618088
Truck Mounted Crane-shovel
008618088
Truck Mounted Crane-shovel
010534824
Fork Lift Truck
011085731
Fire Fighting Truck
010892746
Vehicular Mechanical Transmission
008784285
Crushing And Screening Plant
010384331
Fire Fighting Truck

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Schedule B and Export

Schedule B: 7318160000
SITC: 69421
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Nuts of iron or steel