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537790 — RETAINER,PACKING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

537790: RETAINER,PACKING.

The RETAINER,PACKING is a the manufacturer industrial component. Key specifications include angle: 45.0 DEGREES NOMINAL, body_recess_depth: 0.260 INCHES NOMINAL IN, outer_groove_width: 0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM IN, cross-sectional_height: 1.100 INCHES NOMINAL IN, cross_section_outside_diameter: 0.432 INCHES MINIMUM AND 0.435 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-884-9998, 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
537790
NSN: 5330-00-884-9998
FSC: 5330 — Packing and Gasket Materials
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
angle45.0 DEGREES NOMINAL
body_recess_depth0.260 INCHES NOMINAL IN
outer_groove_width0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM IN
cross-sectional_height1.100 INCHES NOMINAL IN
cross_section_outside_diameter0.432 INCHES MINIMUM AND 0.435 INCHES MAXIMUM IN
NSN5330-00-884-9998
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 537790 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
•
CROSS-SECTIONAL HEIGHT: 1.100 INCHES NOMINAL IN
•
ANGLE: 45.0 DEGREES NOMINAL
•
OUTER GROOVE WIDTH: 0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM IN
•
CROSS SECTION OUTSIDE DIAMETER: 0.432 INCHES MINIMUM AND 0.435 INCHES MAXIMUM IN
•
BODY RECESS DEPTH: 0.260 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT1.100 INCHES NOMINAL IN
ANGLE45.0 DEGREES NOMINAL
OUTER GROOVE WIDTH0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM IN
CROSS SECTION OUTSIDE DIAMETER0.432 INCHES MINIMUM AND 0.435 INCHES MAXIMUM IN
BODY RECESS DEPTH0.260 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 537790?
537790 is a RETAINER,PACKING.
What is the NSN for 537790?
537790 is cataloged in the U.S. Government catalog under NSN 5330-00-884-9998. 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.