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12371057 — RETAINER,SEAL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12371057: RETAINER,SEAL.

The RETAINER,SEAL is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, overall_height: 0.310 INCHES NOMINAL IN, seal_seat_diameter: 1.250 INCHES MINIMUM AND 1.255 INCHES MAXIMUM IN, body_outside_diameter: 1.510 INCHES MINIMUM AND 1.520 INCHES MAXIMUM IN, end_item_identification: 2350-01-087-1095,M1 ABRAMS TANK, mounting_flange_diameter: 2.120 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-471-3536, 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
12371057
NSN: 5330-01-471-3536
FSC: 5330 — Packing and Gasket Materials
CAGE: 01417 — GENERAL DYNAMICS LAND SYSTEMS INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_height0.310 INCHES NOMINAL IN
seal_seat_diameter1.250 INCHES MINIMUM AND 1.255 INCHES MAXIMUM IN
body_outside_diameter1.510 INCHES MINIMUM AND 1.520 INCHES MAXIMUM IN
end_item_identification2350-01-087-1095,M1 ABRAMS TANK
mounting_flange_diameter2.120 INCHES NOMINAL IN
material_document_and_classificationASTM A-331 GRADE 4140 THRU 4150 OR 4140H THRU 4150H NATIONAL SPEC ALL MATERIAL RESPONSES OVERALL
NSN5330-01-471-3536
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12371057 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
•
BODY OUTSIDE DIAMETER: 1.510 INCHES MINIMUM AND 1.520 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A-331 GRADE 4140 THRU 4150 OR 4140H THRU 4150H NATIONAL SPEC ALL MATERIAL RESPONSES OVERALL
•
SEAL SEAT DIAMETER: 1.250 INCHES MINIMUM AND 1.255 INCHES MAXIMUM IN
•
MOUNTING FLANGE DIAMETER: 2.120 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.310 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER1.510 INCHES MINIMUM AND 1.520 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A-331 GRADE 4140 THRU 4150 OR 4140H THRU 4150H NATIONAL SPEC ALL MATERIAL RESPONSES OVERALL
SEAL SEAT DIAMETER1.250 INCHES MINIMUM AND 1.255 INCHES MAXIMUM IN
SPECIAL FEATURES3 HOLES BORED ON SIDE;2 HOLES COUNTERD BORED 0.237 DIA, 1 HOLE THD 6-32 UNCB THD THRU;1 HOLE THD AND 1 HOLE COUNTERED BORED CENTERED END TO END AT 0.905 IN FROM CENTER OF RETAINER;1 HOLE COUNTER BORED ACROSS FROM OTHER 2 HOLES CENTERED AT 0.905 IN FROM CENTER; HAS .060 - .075 IN SLOT BETWEEN THD AND COUNTERED BORED HOLES IN
END ITEM IDENTIFICATION2350-01-087-1095,M1 ABRAMS TANK
MOUNTING FLANGE DIAMETER2.120 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12371057?
12371057 is a RETAINER,SEAL.
What is the NSN for 12371057?
12371057 is cataloged in the U.S. Government catalog under NSN 5330-01-471-3536. 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.