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HRC-728 LEFT — BUMPER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

HRC-728 LEFT: BUMPER.

The BUMPER is a the manufacturer industrial component. Key specifications include material: RUBBER, overall_width: 4.000 INCHES NOMINAL IN, overall_length: 16.750 INCHES NOMINAL IN, material_document_and_classification: MIL-R-6855, CLASS 2, GRADE 60 MIL SPEC SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-406-5029, 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
HRC-728 LEFT
NSN: 5340-01-406-5029
FSC: 5340 — Hardware, Commercial
CAGE: 7D712 — HAMPTON RUBBER COMPANY (USA)
SPECIFICATIONS
materialRUBBER
overall_width4.000 INCHES NOMINAL IN
overall_length16.750 INCHES NOMINAL IN
material_document_and_classificationMIL-R-6855, CLASS 2, GRADE 60 MIL SPEC SINGLE MATERIAL RESPONSE
NSN5340-01-406-5029
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: HRC-728 LEFT 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 DOCUMENT AND CLASSIFICATION: MIL-R-6855, CLASS 2, GRADE 60 MIL SPEC SINGLE MATERIAL RESPONSE
•
MATERIAL: RUBBER
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-6855, CLASS 2, GRADE 60 MIL SPEC SINGLE MATERIAL RESPONSE
OVERALL LENGTH16.750 INCHES NOMINAL IN
OVERALL WIDTH4.000 INCHES NOMINAL IN
MATERIALRUBBER
SUBSTITUTES & CROSS-REFERENCES 2
1339AS199-2Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
HRC-728 RIGHTReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is HRC-728 LEFT?
HRC-728 LEFT is a BUMPER.
What parts can replace HRC-728 LEFT?
There are 2 known substitutes for HRC-728 LEFT: 1339AS199-2, HRC-728 RIGHT. Substitute compatibility should be verified for your specific system.
What is the NSN for HRC-728 LEFT?
HRC-728 LEFT is cataloged in the U.S. Government catalog under NSN 5340-01-406-5029. This indicates validated use in U.S. government and defense supply chains.
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