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2051F51 ITEM 102 — WASHER,SHOULDERED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

2051F51 ITEM 102: WASHER,SHOULDERED.

The WASHER,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, hole_diameter: 0.136 INCHES MINIMUM AND 0.146 INCHES MAXIMUM IN, overall_height: 0.170 INCHES NOMINAL IN, shoulder_height: 0.135 INCHES NOMINAL IN, outside_diameter: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN, style_designator: SHOULDERED. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-479-4246, 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
2051F51 ITEM 102
NSN: 5310-01-479-4246
FSC: 5310 — Nuts and Washers
CAGE: 04804 — NORTHROP GRUMMAN SYSTEMS CORPORATION DIV MARINE SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
hole_diameter0.136 INCHES MINIMUM AND 0.146 INCHES MAXIMUM IN
overall_height0.170 INCHES NOMINAL IN
shoulder_height0.135 INCHES NOMINAL IN
outside_diameter0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
style_designatorSHOULDERED
shoulder_diameter0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
surface_treatmentPASSIVATE OVERALL
NSN5310-01-479-4246
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2051F51 ITEM 102 · 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
•
SHOULDER HEIGHT: 0.135 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SHOULDERED
•
OUTSIDE DIAMETER: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
•
SHOULDER DIAMETER: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
HOLE DIAMETER: 0.136 INCHES MINIMUM AND 0.146 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.170 INCHES NOMINAL IN
SHOULDER HEIGHT0.135 INCHES NOMINAL IN
STYLE DESIGNATORSHOULDERED
OUTSIDE DIAMETER0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
SHOULDER DIAMETER0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALSTEEL CORROSION RESISTING OVERALL
HOLE DIAMETER0.136 INCHES MINIMUM AND 0.146 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 1
2051F51Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2051F51 ITEM 102?
2051F51 ITEM 102 is a WASHER,SHOULDERED.
What parts can replace 2051F51 ITEM 102?
There is 1 known substitute for 2051F51 ITEM 102: 2051F51. Substitute compatibility should be verified for your specific system.
What is the NSN for 2051F51 ITEM 102?
2051F51 ITEM 102 is cataloged in the U.S. Government catalog under NSN 5310-01-479-4246. 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.