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220402 — RETAINER,HELICAL COMPRESSION SPR

✓ Government record, cited
Hama · ORING SEAL
PRODUCT OVERVIEW

220402: RETAINER,HELICAL COMPRESSION SPR.

RETAINER,HELICAL COMPRESSION SPR. Key specifications include material: NICKEL ALLOY 400, lip_thickness: 0.180 INCHES NOMINAL IN, overall_height: 0.810 INCHES NOMINAL IN, style_designator: IRREGULAR, end_hole_diameter: 4.000 INCHES MINIMUM AND 4.005 INCHES MAXIMUM IN, body_inside_diameter: 3.758 INCHES MINIMUM AND 3.760 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-049-2008, 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
220402
NSN: 5340-01-049-2008
FSC: 5340 — Hardware, Commercial
CAGE: 0UBG9 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DIV EPD (USA)
SPECIFICATIONS
materialNICKEL ALLOY 400
lip_thickness0.180 INCHES NOMINAL IN
overall_height0.810 INCHES NOMINAL IN
style_designatorIRREGULAR
end_hole_diameter4.000 INCHES MINIMUM AND 4.005 INCHES MAXIMUM IN
body_inside_diameter3.758 INCHES MINIMUM AND 3.760 INCHES MAXIMUM IN
bolt_circle_diameter4.060 INCHES NOMINAL IN
body_outside_diameter5.248 INCHES MINIMUM AND 5.250 INCHES MAXIMUM IN
mounting_hole_diameter0.250 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN
casehardening_indicatorNOT CASEHARDENED
outside_chamfer_angle_in_deg45.0
material_document_and_classificationQQ-N-281 CLASS A CD OR HF FED SPEC SINGLE MATERIAL RESPONSE
NSN5340-01-049-2008
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 220402 MFR: Hama ⚠ 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: 5.248 INCHES MINIMUM AND 5.250 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: IRREGULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281 CLASS A CD OR HF FED SPEC SINGLE MATERIAL RESPONSE
•
MOUNTING HOLE DIAMETER: 0.250 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN
•
BODY INSIDE DIAMETER: 3.758 INCHES MINIMUM AND 3.760 INCHES MAXIMUM IN
•
OUTSIDE CHAMFER ANGLE IN DEG: 45.0
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.810 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER5.248 INCHES MINIMUM AND 5.250 INCHES MAXIMUM IN
STYLE DESIGNATORIRREGULAR
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 CLASS A CD OR HF FED SPEC SINGLE MATERIAL RESPONSE
MOUNTING HOLE DIAMETER0.250 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN
BODY INSIDE DIAMETER3.758 INCHES MINIMUM AND 3.760 INCHES MAXIMUM IN
OUTSIDE CHAMFER ANGLE IN DEG45.0
CASEHARDENING INDICATORNOT CASEHARDENED
LIP THICKNESS0.180 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER4.060 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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 220402?
220402 is a RETAINER,HELICAL COMPRESSION SPR manufactured by Hama.
What is the NSN for 220402?
220402 is cataloged in the U.S. Government catalog under NSN 5340-01-049-2008. 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.