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11661611 — PIN,RETAINING

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

11661611: PIN,RETAINING.

The PIN,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, prong_length: 21.620 INCHES NOMINAL IN, opening_width: 0.620 INCHES NOMINAL IN, surface_treatment: CADMIUM AND CHROMATE OVERALL, wire_stock_diameter: 0.125 INCHES NOMINAL IN, material_document_and_classification: QQ-W-428,TY 1 OR TY 2 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-250-5447, 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
11661611
NSN: 5315-01-250-5447
NIINs: 012505447, 012992367
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL OVERALL
prong_length21.620 INCHES NOMINAL IN
opening_width0.620 INCHES NOMINAL IN
surface_treatmentCADMIUM AND CHROMATE OVERALL
wire_stock_diameter0.125 INCHES NOMINAL IN
material_document_and_classificationQQ-W-428,TY 1 OR TY 2 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5315-01-250-5447
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 11661611 · 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
•
WIRE STOCK DIAMETER: 0.125 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
OPENING WIDTH: 0.620 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-W-428,TY 1 OR TY 2 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
PRONG LENGTH: 21.620 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
WIRE STOCK DIAMETER0.125 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
OPENING WIDTH0.620 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-W-428,TY 1 OR TY 2 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
PRONG LENGTH21.620 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 11661611?
11661611 is a PIN,RETAINING.
What is the NSN for 11661611?
11661611 is cataloged in the U.S. Government catalog under NSN 5315-01-250-5447. 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.