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722A8MS-772-9173 — 722A8MS-772-9173

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

722A8MS-772-9173: 722A8MS-772-9173.

The 722A8MS-772-9173 is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5331-01-539-6397, 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
722A8MS-772-9173
NSN: 5331-01-539-6397
FSC: 5331 — O-ring
CAGE: 5F573 — GREENE TWEED & CO INC (USA)
SPECIFICATIONS
Part Number722A8MS-772-9173
NSN5331-01-539-6397
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 722A8MS-772-9173 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
•
TEMP RATING: -350.0 FAHRENHEIT AND 350.0 FAHRENHEIT DEGF
•
CROSS-SECTIONAL HEIGHT: 0.139 INCHES NOMINAL IN
•
HARDNESS RATING: 60.0 SHORE DUROMETER D NOMINAL
•
CENTER HOLE DIAMETER: 2.248 INCHES MAXIMUM IN
•
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE
TECHNICAL CHARACTERISTICS
TEMP RATING-350.0 FAHRENHEIT AND 350.0 FAHRENHEIT DEGF
CROSS-SECTIONAL HEIGHT0.139 INCHES NOMINAL IN
HARDNESS RATING60.0 SHORE DUROMETER D NOMINAL
SPECIAL FEATURESNON STANDARD SIZE WITH SOLDI BACK UP
CENTER HOLE DIAMETER2.248 INCHES MAXIMUM IN
PART NAME ASSIGNED BY CONTROLLING AGENCYINAVY) AGT ROD RING
END ITEM IDENTIFICATIONEA-6B AIRCRAFT
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE
SUBSTITUTES & CROSS-REFERENCES 1
722A8MS-777-9173Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 722A8MS-772-9173?
722A8MS-772-9173 is a 722A8MS-772-9173.
What parts can replace 722A8MS-772-9173?
There is 1 known substitute for 722A8MS-772-9173: 722A8MS-777-9173. Substitute compatibility should be verified for your specific system.
What is the NSN for 722A8MS-772-9173?
722A8MS-772-9173 is cataloged in the U.S. Government catalog under NSN 5331-01-539-6397. 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.