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66830-A-KIT — PLATE,MOUNTING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

66830-A-KIT: PLATE,MOUNTING.

The PLATE,MOUNTING is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY, end_item_identification: TACTICAL RIFLE, part_name_assigned_by_controlling_agency: ZERO GAP RINGS. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-578-9042, 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
66830-A-KIT
NSN: 5340-01-578-9042
FSC: 5340 — Hardware, Commercial
CAGE: 0BT64 — BARRETT FIREARMS MANUFACTURING, INC. DBA BARRETT FIREARMS MANUFACTURING INC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
special_features30MM ZERO-GAP ULTRA HIGH (1.4 IN) RINGS; 7076-T6 ALUMINUM; WITH RAIL CLAMPING CROSS BOLT AND NUT; BASE TYPE MIL-STD-1913 RAIL MM
end_item_identificationTACTICAL RIFLE
part_name_assigned_by_controlling_agencyZERO GAP RINGS
NSN5340-01-578-9042
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 66830-A-KIT 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: ALUMINUM ALLOY
TECHNICAL CHARACTERISTICS
SPECIAL FEATURES30MM ZERO-GAP ULTRA HIGH (1.4 IN) RINGS; 7076-T6 ALUMINUM; WITH RAIL CLAMPING CROSS BOLT AND NUT; BASE TYPE MIL-STD-1913 RAIL MM
PART NAME ASSIGNED BY CONTROLLING AGENCYZERO GAP RINGS
END ITEM IDENTIFICATIONTACTICAL RIFLE
MATERIALALUMINUM ALLOY
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
Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is 66830-A-KIT?
66830-A-KIT is a PLATE,MOUNTING.
What is the NSN for 66830-A-KIT?
66830-A-KIT is cataloged in the U.S. Government catalog under NSN 5340-01-578-9042. 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.