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12887 ✓ 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 STOP,PACKING RING is a the manufacturer industrial component. Key specifications include end_style: ONE HOOK END OVERALL, coil_quantity: 2-1/4, inside_diameter: 0.125 INCHES NOMINAL IN, style_designator: SINGLE TORSION LEFT HAND, surface_treatment: ZINC OR CHROMATE OVERALL, spring_free_length: 0.078 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-358-9872, 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
12887
NSN: 5330-00-358-9872
FSC: 5330
CAGE: 04285 — ATHEY PRODUCTS CORP (USA)
SPECIFICATIONS
end_styleONE HOOK END OVERALL
coil_quantity2-1/4
inside_diameter0.125 INCHES NOMINAL IN
style_designatorSINGLE TORSION LEFT HAND
surface_treatmentZINC OR CHROMATE OVERALL
spring_free_length0.078 INCHES NOMINAL IN
coil_helix_directionRIGHT-HAND
end_angular_relationshipENDS ANGLED ONE TO OTHER
end_length_from_second_bend_to_third_bend_or_end0.078 INCHES NOMINAL OVERALL IN
NSN5330-00-358-9872
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12887 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
•
MATERIAL: CELLULOSE OVERALL
•
HOLE DIAMETER: 0.468 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
GASKET CENTER TO FLAT DISTANCE: 7.438 INCHES NOMINAL IN
•
BOLT CIRCLE DIAMETER: 14.250 INCHES NOMINAL IN
•
CROSS-SECTIONAL THICKNESS: 0.006 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCELLULOSE OVERALL
HOLE DIAMETER0.468 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
GASKET CENTER TO FLAT DISTANCE7.438 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER14.250 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.006 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
DS-934401Interchangeable
interchangeable cross-reference
interchangeable
5233Interchangeable
interchangeable cross-reference
interchangeable
AQM60FS440-4CInterchangeable
interchangeable cross-reference
interchangeable
1611203PC22Interchangeable
interchangeable cross-reference
interchangeable
AN381-3-8Interchangeable
interchangeable cross-reference
interchangeable
58D5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12887?
12887 is a STOP,PACKING RING.
What parts can replace 12887?
There are 30 known substitutes for 12887: DS-934401, 5233, AQM60FS440-4C and 27 more. Substitute compatibility should be verified for your specific system.
Is 12887 still available?
12887 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026