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550031SS12A — RETAINER,ASSEMBLED NUT

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

550031SS12A: RETAINER,ASSEMBLED NUT.

The RETAINER,ASSEMBLED NUT is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, overall_length: 0.375 INCHES NOMINAL IN, overall_diameter: 0.531 INCHES NOMINAL IN, surface_treatment: PASSIVATE, thread_size_and_series/type_designator: 1/4-20 UNIFIED NATIONAL COARSE (UNC). This part is cataloged in the U.S.

Government catalog under NSN 5340-01-591-9662, 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
550031SS12A
NSN: 5340-01-591-9662
FSC: 5340 — Hardware, Commercial
CAGE: 51506 — ACCURATE SCREW MACHINE CORP DIV ACCURATE SCREW MACHINE CORPORATION (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
overall_length0.375 INCHES NOMINAL IN
overall_diameter0.531 INCHES NOMINAL IN
surface_treatmentPASSIVATE
thread_size_and_series/type_designator1/4-20 UNIFIED NATIONAL COARSE (UNC)
NSN5340-01-591-9662
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 550031SS12A 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
•
OVERALL DIAMETER: 0.531 INCHES NOMINAL IN
•
SURFACE TREATMENT: PASSIVATE
•
MATERIAL: STEEL CORROSION RESISTING
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 1/4-20 UNIFIED NATIONAL COARSE (UNC)
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.531 INCHES NOMINAL IN
OVERALL LENGTH0.375 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE
MATERIALSTEEL CORROSION RESISTING
THREAD SIZE AND SERIES/TYPE DESIGNATOR1/4-20 UNIFIED NATIONAL COARSE (UNC)
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 550031SS12A?
550031SS12A is a RETAINER,ASSEMBLED NUT.
What is the NSN for 550031SS12A?
550031SS12A is cataloged in the U.S. Government catalog under NSN 5340-01-591-9662. This indicates validated use in U.S. government and defense supply chains.
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