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12553820 — BUMPER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12553820: BUMPER.

The BUMPER is a the manufacturer industrial component. Key specifications include material: RUBBER, overall_width: 0.620 INCHES NOMINAL IN, overall_height: 0.540 INCHES NOMINAL IN, overall_length: 1.200 INCHES NOMINAL IN, special_features: GOES ON ABF499 AF1 M109A3E2 MODIFIED, style_designator: RECTANGULAR. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-321-3869, 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
12553820
NSN: 5340-01-321-3869
FSC: 5340 — Hardware, Commercial
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
materialRUBBER
overall_width0.620 INCHES NOMINAL IN
overall_height0.540 INCHES NOMINAL IN
overall_length1.200 INCHES NOMINAL IN
special_featuresGOES ON ABF499 AF1 M109A3E2 MODIFIED
style_designatorRECTANGULAR
NSN5340-01-321-3869
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12553820 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
•
STYLE DESIGNATOR: RECTANGULAR
•
MATERIAL: RUBBER
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.540 INCHES NOMINAL IN
STYLE DESIGNATORRECTANGULAR
OVERALL LENGTH1.200 INCHES NOMINAL IN
OVERALL WIDTH0.620 INCHES NOMINAL IN
SPECIAL FEATURESGOES ON ABF499 AF1 M109A3E2 MODIFIED
MATERIALRUBBER
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 12553820?
12553820 is a BUMPER.
What is the NSN for 12553820?
12553820 is cataloged in the U.S. Government catalog under NSN 5340-01-321-3869. 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.