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12277511 — RETAINER,HELICAL COMPRESSION SPR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12277511: RETAINER,HELICAL COMPRESSION SPR.

RETAINER,HELICAL COMPRESSION SPR. Key specifications include material: ALUMINUM ALLOY 2024, lip_thickness: 0.105 INCHES NOMINAL IN, overall_height: 1.285 INCHES NOMINAL IN, flange_diameter: 1.380 INCHES NOMINAL IN, flange_thickness: 0.250 INCHES NOMINAL IN, special_features: 2350-01-085-3792. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-075-7913, 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
12277511
NSN: 5340-01-075-7913
FSC: 5340 — Hardware, Commercial
CAGE: 20418 — DRS SUSTAINMENT SYSTEMS, INC. (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024
lip_thickness0.105 INCHES NOMINAL IN
overall_height1.285 INCHES NOMINAL IN
flange_diameter1.380 INCHES NOMINAL IN
flange_thickness0.250 INCHES NOMINAL IN
special_features2350-01-085-3792
style_designatorPARALLEL
end_hole_diameter0.500 INCHES NOMINAL IN
body_inside_diameter0.672 INCHES NOMINAL IN
bolt_circle_diameter1.000 INCHES NOMINAL IN
body_outside_diameter0.775 INCHES NOMINAL IN
mounting_hole_diameter0.220 INCHES NOMINAL IN
NSN5340-01-075-7913
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12277511 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
•
FLANGE DIAMETER: 1.380 INCHES NOMINAL IN
•
FLANGE THICKNESS: 0.250 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 0.775 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PARALLEL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/6, ALLOY 2024 FED SPEC SINGLE MATERIAL RESPONSE
•
MOUNTING HOLE DIAMETER: 0.220 INCHES NOMINAL IN
•
BODY INSIDE DIAMETER: 0.672 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FLANGE DIAMETER1.380 INCHES NOMINAL IN
OVERALL HEIGHT1.285 INCHES NOMINAL IN
FLANGE THICKNESS0.250 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER0.775 INCHES NOMINAL IN
STYLE DESIGNATORPARALLEL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6, ALLOY 2024 FED SPEC SINGLE MATERIAL RESPONSE
MOUNTING HOLE DIAMETER0.220 INCHES NOMINAL IN
BODY INSIDE DIAMETER0.672 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
LIP THICKNESS0.105 INCHES NOMINAL IN
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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12277511?
12277511 is a RETAINER,HELICAL COMPRESSION SPR.
What is the NSN for 12277511?
12277511 is cataloged in the U.S. Government catalog under NSN 5340-01-075-7913. 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.