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31-0226-1 — PIN,SPRING

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

31-0226-1: PIN,SPRING.

The PIN,SPRING is a the manufacturer industrial component. Key specifications include length: 1.830 INCHES NOMINAL IN, surface_treatment: PASSIVATE OVERALL, width_across_flats: 0.750 INCHES NOMINAL IN, surface_treatment_document_and_classification: QQ-P-35,TYPE 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-421-3498, 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
31-0226-1
NSN: 5315-00-421-3498
NIINs: 004213498, 010714984
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 72914 — GRIMES AEROSPACE COMPANY (USA)
SPECIFICATIONS
length1.830 INCHES NOMINAL IN
surface_treatmentPASSIVATE OVERALL
width_across_flats0.750 INCHES NOMINAL IN
surface_treatment_document_and_classificationQQ-P-35,TYPE 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5315-00-421-3498
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 31-0226-1 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
STYLE DESIGNATOR: SLOTTED
•
DIAMETER: 0.194 INCHES MINIMUM AND 0.199 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.040 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
STYLE DESIGNATORSLOTTED
DIAMETER0.194 INCHES MINIMUM AND 0.199 INCHES MAXIMUM IN
OVERALL LENGTH0.338 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN
MATERIAL THICKNESS0.040 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OVERALL
MATERIALSTEEL OVERALL
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 31-0226-1?
31-0226-1 is a PIN,SPRING.
What is the NSN for 31-0226-1?
31-0226-1 is cataloged in the U.S. Government catalog under NSN 5315-00-421-3498. 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.