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AW 180-256 — AW 180-256

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

AW 180-256: AW 180-256.

The AW 180-256 is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5331-01-455-8423, 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
AW 180-256
NSN: 5331-01-455-8423
FSC: 5331 — O-ring
CAGE: 99517 — VACCO INDUSTRIES (USA)
SPECIFICATIONS
Part NumberAW 180-256
NSN5331-01-455-8423
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AW 180-256 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
•
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-P-83461/1 MIL SPEC SINGLE MATERIAL RESPONSE
•
CENTER HOLE DIAMETER: 5.699 INCHES MINIMUM AND 5.769 INCHES MAXIMUM IN
•
MATERIAL: RUBBER SYNTHETIC
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-83461/1 MIL SPEC SINGLE MATERIAL RESPONSE
CENTER HOLE DIAMETER5.699 INCHES MINIMUM AND 5.769 INCHES MAXIMUM IN
MATERIALRUBBER SYNTHETIC
SUBSTITUTES & CROSS-REFERENCES 6
M83461/1-256Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
082682H ITEM NO 8Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
AMS-P-83461/1Reference document
Same NSN cross-reference
Reference document — Secondary reference
SAE-AS83461/1Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
MIL-P-83461/1Reference document
Same NSN cross-reference
Reference document — Secondary reference
V1E10601 ITEM 44Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AW 180-256?
AW 180-256 is a AW 180-256.
What parts can replace AW 180-256?
There are 6 known substitutes for AW 180-256: M83461/1-256, 082682H ITEM NO 8, AMS-P-83461/1 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AW 180-256?
AW 180-256 is cataloged in the U.S. Government catalog under NSN 5331-01-455-8423. This indicates validated use in U.S. government and defense supply chains.
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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.