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1127961 — SCREW,CAP,HEXAGON HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

1127961: SCREW,CAP,HEXAGON HEAD.

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include special_features: MATERIAL STEEL GRADE 5 DIAMETER IS 0.625 INCHES IN, end_item_identification: COUPLING FLEX RIGID, part_name_assigned_by_controlling_agency: BOLT HEXAGON HEAD. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-566-0673, 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
1127961
NSN: 5305-01-566-0673
FSC: 5305 — Screws
CAGE: 75394 — EMERSON POWER TRANSMISSION CORPORATION DBA EMERSON DIV EMERSON POWER TRANSMISSION DIVISION (USA)
SPECIFICATIONS
special_featuresMATERIAL STEEL GRADE 5 DIAMETER IS 0.625 INCHES IN
end_item_identificationCOUPLING FLEX RIGID
part_name_assigned_by_controlling_agencyBOLT HEXAGON HEAD
NSN5305-01-566-0673
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1127961 · 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
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESMATERIAL STEEL GRADE 5 DIAMETER IS 0.625 INCHES IN
PART NAME ASSIGNED BY CONTROLLING AGENCYBOLT HEXAGON HEAD
END ITEM IDENTIFICATIONCOUPLING FLEX RIGID
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831
SUBSTITUTES & CROSS-REFERENCES 1
1127886 MK 7Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 1127961?
1127961 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace 1127961?
There is 1 known substitute for 1127961: 1127886 MK 7. Substitute compatibility should be verified for your specific system.
What is the NSN for 1127961?
1127961 is cataloged in the U.S. Government catalog under NSN 5305-01-566-0673. 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.