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Technical Data Sheet
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676590-1 — COLLAR,SHAFT

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

676590-1: COLLAR,SHAFT.

The COLLAR,SHAFT is a the manufacturer industrial component. Key specifications include shape: RECTANGULAR, frame_type: FLAT, frame_removability: NONREMOVABLE. This part is cataloged in the U.S.

Government catalog under NSN 5307-00-753-9876, 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
676590-1
NSN: 5307-00-753-9876
NIINs: 007539876, 010521114, 012280971
FSC: 5307 — Studs
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
shapeRECTANGULAR
frame_typeFLAT
frame_removabilityNONREMOVABLE
NSN5307-00-753-9876
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 676590-1 · 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
•
THREAD LENGTH: 0.625 INCHES MINIMUM STUD THREAD IN
•
HARDNESS RATING: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
•
THREAD PITCH DIAMETERS: +0.3385 TO 0.3405 INCHES STUD THREAD IN
•
THREAD DIRECTION: RIGHT-HAND STUD THREAD
•
NOMINAL THREAD SIZE: 0.375 INCHES STUD THREAD IN
TECHNICAL CHARACTERISTICS
THREAD LENGTH0.625 INCHES MINIMUM STUD THREAD IN
THREAD LENGTH0.688 INCHES MINIMUM NUT THREAD IN
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
THREAD PITCH DIAMETERS+0.3385 TO 0.3405 INCHES STUD THREAD IN
OVERALL LENGTH4.407 INCHES MINIMUM AND 4.469 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND STUD THREAD
THREAD DIRECTIONRIGHT-HAND NUT THREAD
NOMINAL THREAD SIZE0.375 INCHES STUD THREAD IN
NOMINAL THREAD SIZE0.375 INCHES NUT THREAD IN
THREAD CLASS2A NUT THREAD A
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 676590-1?
676590-1 is a COLLAR,SHAFT.
What is the NSN for 676590-1?
676590-1 is cataloged in the U.S. Government catalog under NSN 5307-00-753-9876. 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.