Model: 121T956

Hexagon Self-locking Nut

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque all metal design

Nut Style

Hexagon

Nut Height

Between 0.280 inches and 0.328 inches

Width Across Flats

Between 0.430 inches and 0.439 inches

Tempurature Rating

1200.0 degrees fahrenheit

Thread Series

Unjf

Thready Qty Per Inch (tpi)

Thread Size

0.250 inches

Countersink Angle

88.0 degrees nut

Bearing Surface Type

Chamfered

Bearing Surface Finish

125.0 microinches

Material

Stainless steel

Precious Material And Location

All surfaces silver

Precious Material

Silver

Surface Treatment

Silver

Surface Treatment Specification

Ams 2410 assn standard single treatment response

NSN

5310-00-298-2747

Part Number

121T956

Description

Nut,self-locking,hexagon

CAGE

79500

A nut having a flat bottom and 6 sides. An integral feature is incorporated for locking on the threads of a mating member. Excludes nut (1), self-locking, cap.

Part 121T956 NSN 5310-00-298-2747

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

05277

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:

0.1000lbs

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 5310-00-298-2747 is a component of

Hc-130) Ec-130e Mc-130h Sof ( Ac-130h Aircraft
Ec-135h/k/p) Aircraft Tf33-pw-102 (c-135e Engine
B-52h) Aircraft Tf33-p-3/5/9 (c/ec-135 Engine
T56-a-7/15 (c-130b/e/h/n/p) Aircraft Engine
C-2a (reprocured) Aircraft
Tf-33-p-7 (c-141a/b) Aircraft Engine
Tf39-ge-1 (c-5a) Aircraft Engine
J69-t-25 (t-37b) Aircraft Engine
T-39 Aircraft
Wasp Class Lhd
014371578
Nonaircraft Gas Turbine Engine
000158505
Exhaust Pipe
007951797
Full Tracked Combat Engineer Vehicle
007951797
Full Tracked Combat Engineer Vehicle
008725972
Gasoline Engine
008725971
Gasoline Engine
009523926
Gasoline Engine
010414590
Self-propelled Medium Howitzer
010414590
Self-propelled Medium Howitzer
010414590
Self-propelled Medium Howitzer
014831859
Reciprocating Compressor
013626011
Gas Turbine Engine
012339885
Exhaust Pipe
012347442
Exhaust Pipe
012428063
Nonaircraft Gas Turbine Engine
012765947
Gasoline Engine
009523927
Gasoline Engine
011636398
Linear Actuating Cylinder Assembly
011655803
Linear Actuating Cylinder Assembly
011774331
Aircraft Skin
011780473
Aircraft Former
011873239
Linear Actuating Cylinder Assembly
011874295
Linear Actuating Cylinder Assembly
011880254
Linear Actuating Cylinder Assembly
011892954
Linear Actuating Cylinder Assembly
011945655
Reaction Cylinder Assembly
011820578
Guided Missile System Shop Equipment
011326730
Exhaust Pipe
011352770
Portable Duct Type Heater
011374088
Gas Turbine Engine Starter
011449294
Linear Actuating Cylinder
001129821
Metal Tube Assembly
010776708
Gas Turbine Engine Starter
010319306
Reciprocating Compressor Unit
000428635
Angle Bracket
009873948
Solenoid Valve
009873949
Gate Valve
009946578
Exhaust Pipe
010038734
Aircraft Engine Build-up Parts Kit
010039755
Aircraft Engine Build-up Parts Kit
010065171
Aircraft Engine Build-up Parts Kit
010101296
Aircraft Engine Build-up Parts Kit
010155017
Ejector Regulator
005049112
Attack Helicopter
009429348
Solenoid Valve
009790094
Aircraft Maintenance Kit
008075321
Aircraft Structural Panel
008357488
Aircraft Engine Build-up Parts Kit
008714791
Linear Actuating Cylinder Assembly
004396242
Full Tracked Recovery Vehicle
004396242
Full Tracked Recovery Vehicle
008869037
Aircraft Lubricating Oil Tank
007087958
Vehicle Loading Ramp
007095413
Prop Regulator Assy
006320048
Aircraft Lubricating Oil Tank
004396242
Full Tracked Recovery Vehicle
005369496
Rada Test Bench Set
004703867
Power Distribution Console
003404198
Aircraft Access Cover
004066076
Aircraft Fairing
002838239
Bell Crank
000555584
Engine Exhaust System
000788247
Fuselage Parts Kit

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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