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71977 — TIRE CHAIN ASSEMBLY SET

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

71977: TIRE CHAIN ASSEMBLY SET.

The TIRE CHAIN ASSEMBLY SET is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.156 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 0.625 INCHES MAXIMUM IN, fastener_length: 0.625 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-119-4755, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
71977
NSN: 5306-00-119-4755
NIINs: 001194755, 016716658
FSC: 5306 — Bolts
CAGE: 95097 — LITTLE GIANT CRANE AND SHOVEL INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.156 INCHES NOMINAL IN
thread_class2A A
thread_length0.625 INCHES MAXIMUM IN
fastener_length0.625 INCHES NOMINAL IN
locking_featurePELLET THREADS
thread_directionRIGHT-HAND
features_providedFINISHED HEAD
surface_treatmentCADMIUM OVERALL
width_between_flats0.438 INCHES NOMINAL IN
nominal_thread_diameter0.250 INCHES IN
NSN5306-00-119-4755
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 71977 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
HEAD HEIGHT: 0.156 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.625 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: BW-101B-P,FSCM 06853 MFR REF SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.625 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: BW278M,GRADE 5,FSCM 06853 MFR REF 1ST MATERIAL RESPONSE OR SAE J429 ASSN STD 2ND MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
FEATURES PROVIDED: FINISHED HEAD
•
HEAD STYLE: HEXAGON
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.156 INCHES NOMINAL IN
FASTENER LENGTH0.625 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONBW-101B-P,FSCM 06853 MFR REF SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.625 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONBW278M,GRADE 5,FSCM 06853 MFR REF 1ST MATERIAL RESPONSE OR SAE J429 ASSN STD 2ND MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES IN
FEATURES PROVIDEDFINISHED HEAD
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.438 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
L31384Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 71977?
71977 is a TIRE CHAIN ASSEMBLY SET.
What parts can replace 71977?
There is 1 known substitute for 71977: L31384. Substitute compatibility should be verified for your specific system.
What is the NSN for 71977?
71977 is cataloged in the U.S. Government catalog under NSN 5306-00-119-4755. This indicates validated use in U.S. government and defense supply chains.
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