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A2 1-2NC128-1 — KEY,WOODRUFF

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

A2 1-2NC128-1: KEY,WOODRUFF.

The KEY,WOODRUFF is a the manufacturer industrial component. Key specifications include radius: 0.500 INCHES NOMINAL IN, material: NICKEL ALLOY R-405 OVERALL, overall_width: 0.2490 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN, overall_height: 0.2490 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN, overall_length: 3.125 INCHES NOMINAL IN, round_end_length: 0.437 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-215-0187, 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
A2 1-2NC128-1
NSN: 5315-01-215-0187
NIINs: 012150187, 013215023
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 10941 — CARVER PUMP COMPANY (USA)
SPECIFICATIONS
radius0.500 INCHES NOMINAL IN
materialNICKEL ALLOY R-405 OVERALL
overall_width0.2490 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
overall_height0.2490 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
overall_length3.125 INCHES NOMINAL IN
round_end_length0.437 INCHES NOMINAL IN
style_designatorPLAIN
starting_edge_shapeROUND
starting_edge_radius0.500 INCHES NOMINAL IN
material_document_and_classificationQQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5315-01-215-0187
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: A2 1-2NC128-1 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281 CLA FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: NICKEL ALLOY 400 OVERALL
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 CLA FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALNICKEL ALLOY 400 OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
F-NC500-140 PC 128Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A2 1-2NC128-1?
A2 1-2NC128-1 is a KEY,WOODRUFF.
What parts can replace A2 1-2NC128-1?
There is 1 known substitute for A2 1-2NC128-1: F-NC500-140 PC 128. Substitute compatibility should be verified for your specific system.
What is the NSN for A2 1-2NC128-1?
A2 1-2NC128-1 is cataloged in the U.S. Government catalog under NSN 5315-01-215-0187. 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.