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12355891 — BUMPER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12355891: BUMPER.

The BUMPER is a the manufacturer industrial component. Key specifications include material: COTTON AND RUBBER OR PLASTIC POLYESTER AND RUBBER, overall_width: 3.190 INCHES MINIMUM AND 3.310 INCHES MAXIMUM IN, overall_height: 2.190 INCHES MINIMUM AND 2.310 INCHES MAXIMUM IN, overall_length: 4.940 INCHES MINIMUM AND 5.060 INCHES MAXIMUM IN, style_designator: RECTANGULAR. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-305-6333, 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
12355891
NSN: 5340-01-305-6333
FSC: 5340 — Hardware, Commercial
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialCOTTON AND RUBBER OR PLASTIC POLYESTER AND RUBBER
overall_width3.190 INCHES MINIMUM AND 3.310 INCHES MAXIMUM IN
overall_height2.190 INCHES MINIMUM AND 2.310 INCHES MAXIMUM IN
overall_length4.940 INCHES MINIMUM AND 5.060 INCHES MAXIMUM IN
special_features2 DIAMGONAL COUNTERBORED MOUNITING HOLES 0.635 IN. MIN AND 0.655 IN. MAX DIA COUNTERBORED TO 1.040 IN. MIN AND 1.080 IN. MAX DIA TO 1.000 IN. DEEP IN
style_designatorRECTANGULAR
material_document_and_classificationMIL-C-882, TYPE 4 MIL SPEC SINGLE MATERIAL RESPONSE OR ASTM D2000, GRADE -4AA9031A13B13C12F17 ASSN STD SINGLE MATERIAL RESPONSE
NSN5340-01-305-6333
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12355891 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 DOCUMENT AND CLASSIFICATION: MIL-C-882, TYPE 4 MIL SPEC SINGLE MATERIAL RESPONSE OR ASTM D2000, GRADE -4AA9031A13B13C12F17 ASSN STD SINGLE MATERIAL RESPONSE
•
MATERIAL: COTTON AND RUBBER OR PLASTIC POLYESTER AND RUBBER
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT2.190 INCHES MINIMUM AND 2.310 INCHES MAXIMUM IN
STYLE DESIGNATORRECTANGULAR
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-C-882, TYPE 4 MIL SPEC SINGLE MATERIAL RESPONSE OR ASTM D2000, GRADE -4AA9031A13B13C12F17 ASSN STD SINGLE MATERIAL RESPONSE
OVERALL LENGTH4.940 INCHES MINIMUM AND 5.060 INCHES MAXIMUM IN
OVERALL WIDTH3.190 INCHES MINIMUM AND 3.310 INCHES MAXIMUM IN
SPECIAL FEATURES2 DIAMGONAL COUNTERBORED MOUNITING HOLES 0.635 IN. MIN AND 0.655 IN. MAX DIA COUNTERBORED TO 1.040 IN. MIN AND 1.080 IN. MAX DIA TO 1.000 IN. DEEP IN
MATERIALCOTTON AND RUBBER OR PLASTIC POLYESTER AND RUBBER
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
Shelf-life managedAcquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12355891?
12355891 is a BUMPER.
What is the NSN for 12355891?
12355891 is cataloged in the U.S. Government catalog under NSN 5340-01-305-6333. 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.