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2890408-1 — BOLT ASSEMBLY,ADJUSTABLE DIAMETE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

2890408-1: BOLT ASSEMBLY,ADJUSTABLE DIAMETE.

BOLT ASSEMBLY,ADJUSTABLE DIAMETE. Key specifications include end_item_identification: SEASPARROW MK29 MODEL 0 MISSILE LAUNCHING SYSTEM, general_characteristics_item_description: COMPONENT QTY 4,BOLT SHEAR NAS 1306,NUT SELF-LOCKING MS21405,WASHER FLAT AND BUSHING SEGMENT. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-127-0138, 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
2890408-1
NSN: 5306-01-127-0138
FSC: 5306 — Bolts
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
end_item_identificationSEASPARROW MK29 MODEL 0 MISSILE LAUNCHING SYSTEM
general_characteristics_item_descriptionCOMPONENT QTY 4,BOLT SHEAR NAS 1306,NUT SELF-LOCKING MS21405,WASHER FLAT AND BUSHING SEGMENT
NSN5306-01-127-0138
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 2890408-1 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: COMPONENT QTY 4,BOLT SHEAR NAS 1306,NUT SELF-LOCKING MS21405,WASHER FLAT AND BUSHING SEGMENT
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONCOMPONENT QTY 4,BOLT SHEAR NAS 1306,NUT SELF-LOCKING MS21405,WASHER FLAT AND BUSHING SEGMENT
END ITEM IDENTIFICATIONSEASPARROW MK29 MODEL 0 MISSILE LAUNCHING SYSTEM
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 2
2890408Reference document
Same NSN cross-reference
Reference document — Secondary reference
ABC5732Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2890408-1?
2890408-1 is a BOLT ASSEMBLY,ADJUSTABLE DIAMETE.
What parts can replace 2890408-1?
There are 2 known substitutes for 2890408-1: 2890408, ABC5732. Substitute compatibility should be verified for your specific system.
What is the NSN for 2890408-1?
2890408-1 is cataloged in the U.S. Government catalog under NSN 5306-01-127-0138. 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.