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55077-01 — BUMPER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

55077-01: BUMPER.

The BUMPER is a the manufacturer industrial component. Key specifications include material: RUBBER SILICONE, overall_height: 1.940 INCHES MINIMUM AND 2.060 INCHES MAXIMUM IN, special_features: 0.420 IN. THK MIN,0.580 IN.

THK MAX IN, style_designator: FLAT TOP, outside/top_flange_diameter: 3.065 INCHES MINIMUM AND 3.185 INCHES MAXIMUM IN, material_document_and_classification: ASTM D1056, CLASS E, GRADE RE42 B ASSN STD SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S. Government catalog under NSN 5340-01-208-3349, 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
55077-01
NSN: 5340-01-208-3349
FSC: 5340 — Hardware, Commercial
CAGE: 07703 — ATK LAUNCH SYSTEMS LLC DBA ATK LAUNCH SYSTEMS-PROMONTORY DIV PROPULSION SYSTEMS - PROMONTORY (USA)
SPECIFICATIONS
materialRUBBER SILICONE
overall_height1.940 INCHES MINIMUM AND 2.060 INCHES MAXIMUM IN
special_features0.420 IN. THK MIN,0.580 IN. THK MAX IN
style_designatorFLAT TOP
outside/top_flange_diameter3.065 INCHES MINIMUM AND 3.185 INCHES MAXIMUM IN
material_document_and_classificationASTM D1056, CLASS E, GRADE RE42 B ASSN STD SINGLE MATERIAL RESPONSE
NSN5340-01-208-3349
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 55077-01 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
•
OUTSIDE/TOP FLANGE DIAMETER: 3.065 INCHES MINIMUM AND 3.185 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: FLAT TOP
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM D1056, CLASS E, GRADE RE42 B ASSN STD SINGLE MATERIAL RESPONSE
•
MATERIAL: RUBBER SILICONE
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT1.940 INCHES MINIMUM AND 2.060 INCHES MAXIMUM IN
OUTSIDE/TOP FLANGE DIAMETER3.065 INCHES MINIMUM AND 3.185 INCHES MAXIMUM IN
STYLE DESIGNATORFLAT TOP
MATERIAL DOCUMENT AND CLASSIFICATIONASTM D1056, CLASS E, GRADE RE42 B ASSN STD SINGLE MATERIAL RESPONSE
SPECIAL FEATURES0.420 IN. THK MIN,0.580 IN. THK MAX IN
MATERIALRUBBER SILICONE
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 55077-01?
55077-01 is a BUMPER.
What is the NSN for 55077-01?
55077-01 is cataloged in the U.S. Government catalog under NSN 5340-01-208-3349. This indicates validated use in U.S. government and defense supply chains.
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