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128HM10082-1 — RETAINER,HELICAL COMPRESSION SPR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

128HM10082-1: RETAINER,HELICAL COMPRESSION SPR.

RETAINER,HELICAL COMPRESSION SPR. Key specifications include material: ALUMINUM ALLOY 7075, lip_thickness: 0.063 INCHES NOMINAL IN, overall_height: 0.823 INCHES MINIMUM AND 0.833 INCHES MAXIMUM IN, flange_diameter: 1.375 INCHES NOMINAL IN, flange_thickness: 0.110 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN, style_designator: PARALLEL. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-970-9224, 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
128HM10082-1
NSN: 5340-00-970-9224
FSC: 5340 — Hardware, Commercial
CAGE: 79RG9 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 7075
lip_thickness0.063 INCHES NOMINAL IN
overall_height0.823 INCHES MINIMUM AND 0.833 INCHES MAXIMUM IN
flange_diameter1.375 INCHES NOMINAL IN
flange_thickness0.110 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
style_designatorPARALLEL
end_hole_diameter0.528 INCHES MINIMUM AND 0.538 INCHES MAXIMUM IN
surface_treatmentANODIZE
body_inside_diameter1.000 INCHES NOMINAL IN
bolt_circle_diameter1.465 INCHES NOMINAL IN
body_outside_diameter1.125 INCHES NOMINAL IN
mounting_hole_diameter0.044 INCHES MINIMUM AND 0.049 INCHES MAXIMUM IN
NSN5340-00-970-9224
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 128HM10082-1 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: 1.375 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625, TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE
•
FLANGE THICKNESS: 0.110 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
•
BODY OUTSIDE DIAMETER: 1.125 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PARALLEL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/9, ALLOY 7075, T7351 FED SPEC SINGLE MATERIAL RESPONSE
•
MOUNTING HOLE DIAMETER: 0.044 INCHES MINIMUM AND 0.049 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
FLANGE DIAMETER1.375 INCHES NOMINAL IN
OVERALL HEIGHT0.823 INCHES MINIMUM AND 0.833 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625, TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE
FLANGE THICKNESS0.110 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER1.125 INCHES NOMINAL IN
STYLE DESIGNATORPARALLEL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/9, ALLOY 7075, T7351 FED SPEC SINGLE MATERIAL RESPONSE
MOUNTING HOLE DIAMETER0.044 INCHES MINIMUM AND 0.049 INCHES MAXIMUM IN
BODY INSIDE DIAMETER1.000 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
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 1
128HM10082Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedDemilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is 128HM10082-1?
128HM10082-1 is a RETAINER,HELICAL COMPRESSION SPR.
What parts can replace 128HM10082-1?
There is 1 known substitute for 128HM10082-1: 128HM10082. Substitute compatibility should be verified for your specific system.
What is the NSN for 128HM10082-1?
128HM10082-1 is cataloged in the U.S. Government catalog under NSN 5340-00-970-9224. 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.