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Technical Data Sheet
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581577 — BOLT,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

581577: BOLT,SHOULDER.

The BOLT,SHOULDER is a the manufacturer industrial component. Key specifications include material: RUBBER OVERALL, end_item_identification: 3655-01-463-3338, part_name_assigned_by_controlling_agency: DOOR HOLDER. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-499-9203, 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
581577
NSN: 5306-00-499-9203
NIINs: 004999203, 014792935
FSC: 5306 — Bolts
CAGE: 00006 — ACF-BRILL MOTORS CO
SPECIFICATIONS
materialRUBBER OVERALL
end_item_identification3655-01-463-3338
part_name_assigned_by_controlling_agencyDOOR HOLDER
NSN5306-00-499-9203
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 581577 · 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: 2.250 INCHES NOMINAL IN
•
SHOULDER LENGTH: 0.828 INCHES MINIMUM AND 0.844 INCHES MAXIMUM FIRST SHOULDER IN
•
DISTANCE FROM CENTERLINE TO FLAT: 0.445 INCHES NOMINAL IN
•
SHOULDER DIAMETER: 0.876 INCHES MINIMUM AND 0.881 INCHES MAXIMUM FIRST SHOULDER IN
•
THREAD LENGTH: 1.062 INCHES MINIMUM IN
•
SHOULDER SHAPE: ROUND FIRST SHOULDER
•
NOMINAL THREAD DIAMETER: 0.750 INCHES IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.250 INCHES NOMINAL IN
FASTENER LENGTH2.250 INCHES NOMINAL IN
SHOULDER LENGTH0.828 INCHES MINIMUM AND 0.844 INCHES MAXIMUM FIRST SHOULDER IN
DISTANCE FROM CENTERLINE TO FLAT0.445 INCHES NOMINAL IN
SHOULDER DIAMETER0.876 INCHES MINIMUM AND 0.881 INCHES MAXIMUM FIRST SHOULDER IN
THREAD LENGTH1.062 INCHES MINIMUM IN
SHOULDER SHAPEROUND FIRST SHOULDER
NOMINAL THREAD DIAMETER0.750 INCHES IN
HEAD STYLEDEE CHAMFER
THREAD DIRECTIONRIGHT-HAND
SUBSTITUTES & CROSS-REFERENCES 9
536366Reference document
Same NSN cross-reference
Reference document — Secondary reference
3A7312Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
35724Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
V2005Reference document
Same NSN cross-reference
Reference document — Secondary reference
40336Reference document
Same NSN cross-reference
Reference document — Secondary reference
FS4009Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 581577?
581577 is a BOLT,SHOULDER.
What parts can replace 581577?
There are 9 known substitutes for 581577: 536366, 3A7312, 35724 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 581577?
581577 is cataloged in the U.S. Government catalog under NSN 5306-00-499-9203. 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.