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7008-52-311-3121 — SEAL,NONMETALLIC SPECIAL SHAPED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

7008-52-311-3121: SEAL,NONMETALLIC SPECIAL SHAPED.

SEAL,NONMETALLIC SPECIAL SHAPED. Key specifications include material: RUBBER SYNTHETIC OVERALL, special_features: STA. 421-00-443.50, fsc_application_data: FUEL MANIFOLD ACCESS PANEL, end_item_identification: MH60S KNIGHTHAWK HELICOPTER, criticality_code_justification: AGAV, material_document_and_classification: AMIL-STD-670B MIL SPEC 4TH MATERIAL RESPONSE OVERALL.

This part is cataloged in the U.S. Government catalog under NSN 5330-01-502-0428, 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
7008-52-311-3121
NSN: 5330-01-502-0428
FSC: 5330 — Packing and Gasket Materials
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
special_featuresSTA. 421-00-443.50
fsc_application_dataFUEL MANIFOLD ACCESS PANEL
end_item_identificationMH60S KNIGHTHAWK HELICOPTER
criticality_code_justificationAGAV
material_document_and_classificationAMIL-STD-670B MIL SPEC 4TH MATERIAL RESPONSE OVERALL
part_name_assigned_by_controlling_agencySEAL,EMI,AIRCRAFT,M
NSN5330-01-502-0428
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7008-52-311-3121 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
•
FSC APPLICATION DATA: FUEL MANIFOLD ACCESS PANEL
•
CRITICALITY CODE JUSTIFICATION: AGAV
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMIL-STD-670B MIL SPEC 4TH MATERIAL RESPONSE OVERALL
•
MATERIAL: RUBBER SYNTHETIC OVERALL
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATAFUEL MANIFOLD ACCESS PANEL
CRITICALITY CODE JUSTIFICATIONAGAV
MATERIAL DOCUMENT AND CLASSIFICATIONAMIL-STD-670B MIL SPEC 4TH MATERIAL RESPONSE OVERALL
SPECIAL FEATURESSTA. 421-00-443.50
PART NAME ASSIGNED BY CONTROLLING AGENCYSEAL,EMI,AIRCRAFT,M
END ITEM IDENTIFICATIONMH60S KNIGHTHAWK HELICOPTER
MATERIALRUBBER SYNTHETIC 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 7008-52-311-3121?
7008-52-311-3121 is a SEAL,NONMETALLIC SPECIAL SHAPED.
What is the NSN for 7008-52-311-3121?
7008-52-311-3121 is cataloged in the U.S. Government catalog under NSN 5330-01-502-0428. 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.