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1-321NX1-81NMDP — PIN,SPRING

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1-321NX1-81NMDP: PIN,SPRING.

The PIN,SPRING is a the manufacturer industrial component. Key specifications include diameter: 0.031 INCHES NOMINAL IN, material: STEEL CORROSION RESISTING OVERALL, overall_length: 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN, style_designator: COILED, expanded_diameter: 0.033 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN, surface_treatment: PASSIVATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-879-4667, 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
1-321NX1-81NMDP
NSN: 5315-00-879-4667
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: K3297 — SPIROL INDUSTRIES LTD (GBR)
SPECIFICATIONS
diameter0.031 INCHES NOMINAL IN
materialSTEEL CORROSION RESISTING OVERALL
overall_length0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
style_designatorCOILED
expanded_diameter0.033 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
surface_treatmentPASSIVATE OVERALL
NSN5315-00-879-4667
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1-321NX1-81NMDP · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
EXPANDED DIAMETER: 0.033 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: COILED
•
DIAMETER: 0.031 INCHES NOMINAL IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS
EXPANDED DIAMETER0.033 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
STYLE DESIGNATORCOILED
DIAMETER0.031 INCHES NOMINAL IN
OVERALL LENGTH0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALSTEEL CORROSION RESISTING OVERALL
OTHER ITEMS IN FSC 5315 — Nails, Machine Keys, and Pins
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5315-00-000-1037 5315-00-000-1067 5315-00-000-1245 5315-00-000-1372 5315-00-000-1412 5315-00-001-1571 5315-00-001-1572 5315-00-001-1602
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1-321NX1-81NMDP?
1-321NX1-81NMDP is a PIN,SPRING.
What is the NSN for 1-321NX1-81NMDP?
1-321NX1-81NMDP is cataloged in the U.S. Government catalog under NSN 5315-00-879-4667. 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.