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Technical Data Sheet
A1657PJ ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The RETAINER,PACKING is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-297-3156, 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
A1657PJ
NSN: 5330-01-297-3156
FSC: 5330
CAGE: 11859 — HUNT VALVE COMPANY, INC. (USA)
SPECIFICATIONS
Part NumberA1657PJ
NSN5330-01-297-3156
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A1657PJ 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
A1657Interchangeable
interchangeable cross-reference
interchangeable
17Z41Interchangeable
interchangeable cross-reference
interchangeable
699091Interchangeable
interchangeable cross-reference
interchangeable
XNS-655Interchangeable
interchangeable cross-reference
interchangeable
A51657Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-14652BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A1657PJ?
A1657PJ is a RETAINER,PACKING.
What parts can replace A1657PJ?
There are 7 known substitutes for A1657PJ: A1657, 17Z41, 699091 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A1657PJ?
A1657PJ is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-297-3156. This indicates validated use in U.S. government and defense supply chains.
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