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W1-4 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The INSULATION SLEEVING,ELECTRICAL is a the manufacturer industrial component. Key specifications include weight: 25.0 POUNDS NOMINAL LBS, material: PLASTIC, POLYETHYLENE (PP), thickness: 0.031 INCHES NOMINAL IN, tire_type: PNEUMATIC, body_style: UNSHIELDED,SOLID OR THREADED POST,GASKET SEAT, closed_cab: INCLUDED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-209-3773, 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
W1-4
NSN: 5310-00-209-3773
FSC: 5310
CAGE: 38443 — SKF USA INC. (USA)
SPECIFICATIONS
weight25.0 POUNDS NOMINAL LBS
materialPLASTIC, POLYETHYLENE (PP)
thickness0.031 INCHES NOMINAL IN
tire_typePNEUMATIC
body_styleUNSHIELDED,SOLID OR THREADED POST,GASKET SEAT
closed_cabINCLUDED
bucket_typeSTANDARD
design_typeSWINGING BOOM
shank_styleSTRAIGHT HEXAGON
speed_range+3.2 TO 25.0 MILES PER HOUR
bucket_width86.000 INCHES NOMINAL IN
handle_styleCLOSED-D END
NSN5310-00-209-3773
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: W1-4 · 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 THICKNESS: 0.063 INCHES NOMINAL IN
•
INTERNAL PREBENT KEY WIDTH: 0.250 INCHES NOMINAL IN
•
OVERALL DISTANCE INCLUDING KEYS: 3.828 INCHES NOMINAL IN
•
HOLE DIAMETER: 2.813 INCHES NOMINAL IN
•
EXTERNAL PREBENT KEY WIDTH: 0.219 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
EXTERNAL KEY QUANTITY: 19
•
OUTSIDE DIAMETER: 3.312 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL THICKNESS0.063 INCHES NOMINAL IN
INTERNAL PREBENT KEY WIDTH0.250 INCHES NOMINAL IN
OVERALL DISTANCE INCLUDING KEYS3.828 INCHES NOMINAL IN
HOLE DIAMETER2.813 INCHES NOMINAL IN
EXTERNAL PREBENT KEY WIDTH0.219 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
EXTERNAL KEY QUANTITY19
OUTSIDE DIAMETER3.312 INCHES NOMINAL IN
INTERNAL PREBENT KEY LENGTH0.188 INCHES NOMINAL IN
STYLE DESIGNATORKEY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
AN1-4-7601-71PC105Interchangeable
interchangeable cross-reference
interchangeable
CM5-7601-295PC105Interchangeable
interchangeable cross-reference
interchangeable
34890MPC25Interchangeable
interchangeable cross-reference
interchangeable
W14Interchangeable
interchangeable cross-reference
interchangeable
MILB385Interchangeable
interchangeable cross-reference
interchangeable
9B143Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is W1-4?
W1-4 is a INSULATION SLEEVING,ELECTRICAL.
What parts can replace W1-4?
There are 17 known substitutes for W1-4: AN1-4-7601-71PC105, CM5-7601-295PC105, 34890MPC25 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for W1-4?
W1-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-209-3773. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026