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99739-2 — RETAINER,HELICAL COMPRESSION SPR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

99739-2: RETAINER,HELICAL COMPRESSION SPR.

RETAINER,HELICAL COMPRESSION SPR. Key specifications include material: STEEL COMP 303, lip_thickness: 0.310 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN, overall_height: 0.670 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN, special_features: 0.750-20 UNEF-3A THD BODY A, style_designator: IRREGULAR, end_hole_diameter: 0.061 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-863-4172, 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
99739-2
NSN: 5340-00-863-4172
FSC: 5340 — Hardware, Commercial
CAGE: 59364 — HONEYWELL INTERNATIONAL INC. DBA HONEYWELL INTERNATIONAL DIV AEROSPACE - TEMPE (WEST WARNER ROAD) (USA)
SPECIFICATIONS
materialSTEEL COMP 303
lip_thickness0.310 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
overall_height0.670 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN
special_features0.750-20 UNEF-3A THD BODY A
style_designatorIRREGULAR
end_hole_diameter0.061 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
body_inside_diameter0.625 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
body_outside_diameter0.743 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
casehardening_indicatorNOT CASEHARDENED
material_document_and_classificationQQ-S-764, TYPE 303-CANCELED FED SPEC SINGLE MATERIAL RESPONSE
NSN5340-00-863-4172
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 99739-2 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: 0.743 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: IRREGULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-764, TYPE 303-CANCELED FED SPEC SINGLE MATERIAL RESPONSE
•
BODY INSIDE DIAMETER: 0.625 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
LIP THICKNESS: 0.310 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.670 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER0.743 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
STYLE DESIGNATORIRREGULAR
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-764, TYPE 303-CANCELED FED SPEC SINGLE MATERIAL RESPONSE
BODY INSIDE DIAMETER0.625 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
CASEHARDENING INDICATORNOT CASEHARDENED
LIP THICKNESS0.310 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
SPECIAL FEATURES0.750-20 UNEF-3A THD BODY A
MATERIALSTEEL COMP 303
END HOLE DIAMETER0.061 INCHES MINIMUM AND 0.065 INCHES MAXIMUM 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 99739-2?
99739-2 is a RETAINER,HELICAL COMPRESSION SPR.
What is the NSN for 99739-2?
99739-2 is cataloged in the U.S. Government catalog under NSN 5340-00-863-4172. This indicates validated use in U.S. government and defense supply chains.
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