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1951-013 — WASHER,SHOULDERED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1951-013: WASHER,SHOULDERED.

The WASHER,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, outside_diameter: 3.000 INCHES NOMINAL IN, special_features: VALVE MODEL 26KA10-170,SERIALS 72250-51A10 AND 73396-87A10, material_thickness: 0.750 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-265-8980, 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
1951-013
NSN: 5310-01-265-8980
NIINs: 012658980, 014628817
FSC: 5310 — Nuts and Washers
CAGE: 72352 — CURTISS-WRIGHT FLOW CONTROL CORPORATION DBA FARRIS ENGINEERING DIV CURTISS-WRIGHT VALVES DIVISION- FARRIS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
outside_diameter3.000 INCHES NOMINAL IN
special_featuresVALVE MODEL 26KA10-170,SERIALS 72250-51A10 AND 73396-87A10
material_thickness0.750 INCHES NOMINAL IN
NSN5310-01-265-8980
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1951-013 · 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
•
OUTSIDE DIAMETER: 3.000 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.750 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER3.000 INCHES NOMINAL IN
MATERIAL THICKNESS0.750 INCHES NOMINAL IN
SPECIAL FEATURESVALVE MODEL 26KA10-170,SERIALS 72250-51A10 AND 73396-87A10
MATERIALSTEEL OVERALL
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES 1
1951/1951Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 1951-013?
1951-013 is a WASHER,SHOULDERED.
What parts can replace 1951-013?
There is 1 known substitute for 1951-013: 1951/1951. Substitute compatibility should be verified for your specific system.
What is the NSN for 1951-013?
1951-013 is cataloged in the U.S. Government catalog under NSN 5310-01-265-8980. 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.