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P20351 — LINK,CHAIN,CONNECTING

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

P20351: LINK,CHAIN,CONNECTING.

The LINK,CHAIN,CONNECTING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1025 OVERALL, nut_style: SLOTTED, HEXAGON, nut_height: 0.188 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNF, special_features: CHAIN LINK. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-350-4723, 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
P20351
NSN: 5310-00-350-4723
NIINs: 003504723, 015652974
FSC: 5310 — Nuts and Washers
CAGE: 06848 — HONEYWELL INTERNATIONAL INC DIV AEROSPACE-SOUTH BEND (BENDIX DR) (USA)
SPECIFICATIONS
materialSTEEL COMP 1025 OVERALL
nut_styleSLOTTED, HEXAGON
nut_height0.188 INCHES NOMINAL IN
thread_class3B
thread_seriesUNF
special_featuresCHAIN LINK
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_across_flats0.375 INCHES NOMINAL IN
nominal_thread_size0.190 INCHES IN
bearing_surface_typeWASHER FACED
end_item_identificationREAR AXLE DRIVE CHAIN
NSN5310-00-350-4723
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: P20351 · 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
•
WIDTH ACROSS FLATS: 0.375 INCHES NOMINAL IN
•
THREAD SERIES: UNF
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.190 INCHES IN
•
NUT HEIGHT: 0.188 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
NUT STYLE: SLOTTED, HEXAGON
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.375 INCHES NOMINAL IN
THREAD SERIESUNF
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.190 INCHES IN
NUT HEIGHT0.188 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OVERALL
NUT STYLESLOTTED, HEXAGON
THREAD CLASS3B
THREAD QUANTITY PER INCH32
SUBSTITUTES & CROSS-REFERENCES 1
A303329Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is P20351?
P20351 is a LINK,CHAIN,CONNECTING.
What parts can replace P20351?
There is 1 known substitute for P20351: A303329. Substitute compatibility should be verified for your specific system.
What is the NSN for P20351?
P20351 is cataloged in the U.S. Government catalog under NSN 5310-00-350-4723. 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.