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1321990 — BRACKET,DOUBLE ANGLE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

1321990: BRACKET,DOUBLE ANGLE.

The BRACKET,DOUBLE ANGLE is a the manufacturer industrial component. Key specifications include special_features: 2 FIXED AND 2 SWIVEL; 4 INCHES BY 6 INCHES IN, end_item_identification: 5180-01-659-5021, part_name_assigned_by_controlling_agency: CASTER SET. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-236-6223, 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
1321990
NSN: 5340-01-236-6223
NIINs: 012366223, 016700817
FSC: 5340 — Hardware, Commercial
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
special_features2 FIXED AND 2 SWIVEL; 4 INCHES BY 6 INCHES IN
component_quantity4
end_item_identification5180-01-659-5021
part_name_assigned_by_controlling_agencyCASTER SET
NSN5340-01-236-6223
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1321990 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SECOND LEG RELATIONSHIP TO FIRST LEG: NOT IDENTICAL
•
MOUNTING HOLE TYPE: PLAIN
TECHNICAL CHARACTERISTICS
SECOND LEG RELATIONSHIP TO FIRST LEGNOT IDENTICAL
SPECIAL FEATURES4 MTG HOLES ON ONE LEG,ONE HOLE ON THE OTHER LEG
END ITEM IDENTIFICATIONNSN 2320-01-097-0247 HEMTT (HEAVY EXPANDED MOBILITY TACTICAL TRUCK)
MOUNTING HOLE TYPEPLAIN
SUBSTITUTES & CROSS-REFERENCES 1
1313370Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 1321990?
1321990 is a BRACKET,DOUBLE ANGLE.
What parts can replace 1321990?
There is 1 known substitute for 1321990: 1313370. Substitute compatibility should be verified for your specific system.
What is the NSN for 1321990?
1321990 is cataloged in the U.S. Government catalog under NSN 5340-01-236-6223. 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.