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A636 — RELEASE ASSEMBLY,SAFETY

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

A636: RELEASE ASSEMBLY,SAFETY.

The RELEASE ASSEMBLY,SAFETY is a the manufacturer industrial component. Key specifications include end_item_identification: MH-60 AIRCRAFT, part_name_assigned_by_controlling_agency: RELEASE ASSEMBLY, FRIES SAFETY. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-281-3268, 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
A636
NSN: 5306-00-281-3268
NIINs: 002813268, 015473033, 016127926
FSC: 5306 — Bolts
CAGE: 93343 — WHITE FARM EQUIPMENT CO SUB OF TIC INVESTMENT CORP
SPECIFICATIONS
end_item_identificationMH-60 AIRCRAFT
part_name_assigned_by_controlling_agencyRELEASE ASSEMBLY, FRIES SAFETY
NSN5306-00-281-3268
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: A636 · 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: 0.250 INCHES NOMINAL IN
•
FASTENER LENGTH: 3.000 INCHES NOMINAL IN
•
THREAD LENGTH: 1.125 INCHES MINIMUM IN
•
SHANK UNTHREADED HOLE DIAMETER: 0.102 INCHES NOMINAL FIRST HOLE IN
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
FEATURES PROVIDED: UNFINISHED HEAD
•
HEAD STYLE: SQUARE
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.250 INCHES NOMINAL IN
FASTENER LENGTH3.000 INCHES NOMINAL IN
THREAD LENGTH1.125 INCHES MINIMUM IN
SHANK UNTHREADED HOLE DIAMETER0.102 INCHES NOMINAL FIRST HOLE IN
NOMINAL THREAD DIAMETER0.375 INCHES IN
FEATURES PROVIDEDUNFINISHED HEAD
HEAD STYLESQUARE
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH1.875 INCHES NOMINAL IN
WIDTH BETWEEN FLATS0.562 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
471976Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A636?
A636 is a RELEASE ASSEMBLY,SAFETY.
What parts can replace A636?
There is 1 known substitute for A636: 471976. Substitute compatibility should be verified for your specific system.
What is the NSN for A636?
A636 is cataloged in the U.S. Government catalog under NSN 5306-00-281-3268. 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.