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77C959815P004 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

77C959815P004: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY K-500 OVERALL, head_style: HEXAGON, head_height: 0.376 INCHES MINIMUM AND 0.403 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 1.380 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN, fastener_length: 2.220 INCHES MINIMUM AND 2.280 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-493-3136, 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
77C959815P004
NSN: 5306-01-493-3136
FSC: 5306 — Bolts
CAGE: 03538 — LOCKHEED MARTIN CORPORATION DIV RMS (USA)
SPECIFICATIONS
materialNICKEL ALLOY K-500 OVERALL
head_styleHEXAGON
head_height0.376 INCHES MINIMUM AND 0.403 INCHES MAXIMUM IN
thread_class2A A
thread_length1.380 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
fastener_length2.220 INCHES MINIMUM AND 2.280 INCHES MAXIMUM IN
locking_featurePATCH OR PELLET OR STRIP THREADS
thread_directionRIGHT-HAND
width_between_flats0.922 INCHES MINIMUM AND 0.937 INCHES MAXIMUM IN
end_item_identificationWAA AFT POR
nominal_thread_diameter0.625 INCHES IN
thread_quantity_per_inch11
NSN5306-01-493-3136
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 77C959815P004 · 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: 0.376 INCHES MINIMUM AND 0.403 INCHES MAXIMUM IN
•
FASTENER LENGTH: 2.220 INCHES MINIMUM AND 2.280 INCHES MAXIMUM IN
•
THREAD LENGTH: 1.380 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS4676 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.625 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 0.922 INCHES MINIMUM AND 0.937 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.376 INCHES MINIMUM AND 0.403 INCHES MAXIMUM IN
FASTENER LENGTH2.220 INCHES MINIMUM AND 2.280 INCHES MAXIMUM IN
THREAD LENGTH1.380 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS4676 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.625 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.922 INCHES MINIMUM AND 0.937 INCHES MAXIMUM IN
LOCKING FEATUREPATCH OR PELLET OR STRIP THREADS
THREAD CLASS2A A
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 77C959815P004?
77C959815P004 is a BOLT,MACHINE.
What is the NSN for 77C959815P004?
77C959815P004 is cataloged in the U.S. Government catalog under NSN 5306-01-493-3136. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.