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128HM10074-1 — RETAINER,HELICAL COMPRESSION SPR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

128HM10074-1: RETAINER,HELICAL COMPRESSION SPR.

RETAINER,HELICAL COMPRESSION SPR. Key specifications include material: ALUMINUM ALLOY 7075, overall_height: 0.921 INCHES NOMINAL IN, style_designator: IRREGULAR, end_hole_diameter: 0.705 INCHES NOMINAL IN, body_inside_diameter: 0.940 INCHES NOMINAL IN, body_outside_diameter: 1.062 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-970-9234, 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
128HM10074-1
NSN: 5340-00-970-9234
FSC: 5340 — Hardware, Commercial
CAGE: 79RG9 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 7075
overall_height0.921 INCHES NOMINAL IN
style_designatorIRREGULAR
end_hole_diameter0.705 INCHES NOMINAL IN
body_inside_diameter0.940 INCHES NOMINAL IN
body_outside_diameter1.062 INCHES NOMINAL IN
casehardening_indicatorNOT CASEHARDENED
material_document_and_classificationQQ-A-225/9, ALLOY 7075, T7351 FED SPEC SINGLE MATERIAL RESPONSE
NSN5340-00-970-9234
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 128HM10074-1 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
•
BODY OUTSIDE DIAMETER: 1.062 INCHES NOMINAL IN
•
STYLE DESIGNATOR: IRREGULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/9, ALLOY 7075, T7351 FED SPEC SINGLE MATERIAL RESPONSE
•
BODY INSIDE DIAMETER: 0.940 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
MATERIAL: ALUMINUM ALLOY 7075
•
END HOLE DIAMETER: 0.705 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.921 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER1.062 INCHES NOMINAL IN
STYLE DESIGNATORIRREGULAR
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/9, ALLOY 7075, T7351 FED SPEC SINGLE MATERIAL RESPONSE
BODY INSIDE DIAMETER0.940 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
MATERIALALUMINUM ALLOY 7075
END HOLE DIAMETER0.705 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: Terminal item — stock exhausted; no further procurementDemilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is 128HM10074-1?
128HM10074-1 is a RETAINER,HELICAL COMPRESSION SPR.
What is the NSN for 128HM10074-1?
128HM10074-1 is cataloged in the U.S. Government catalog under NSN 5340-00-970-9234. 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.