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WSI-7-2.5-1 — NUT,SELF-LOCKING,PLATE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

WSI-7-2.5-1: NUT,SELF-LOCKING,PLATE.

The NUT,SELF-LOCKING,PLATE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING LOCKING INSERT, nut_style: PLATE, nut_height: 0.250 INCHES NOMINAL IN, nut_length: 0.985 INCHES NOMINAL IN, plate_width: 0.396 INCHES NOMINAL IN, thread_class: 2B. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-227-0597, 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
WSI-7-2.5-1
NSN: 5310-01-227-0597
FSC: 5310 — Nuts and Washers
CAGE: 01469 — MODERN POOL PRODUCTS INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING LOCKING INSERT
nut_stylePLATE
nut_height0.250 INCHES NOMINAL IN
nut_length0.985 INCHES NOMINAL IN
plate_width0.396 INCHES NOMINAL IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
locking_featurePREVAILING TORQUE WITH METALLIC INSERT
plate_thickness0.060 INCHES NOMINAL IN
thread_directionRIGHT-HAND
nominal_thread_size0.138 INCHES IN
mounting_hole_diameter0.098 INCHES NOMINAL IN
NSN5310-01-227-0597
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: WSI-7-2.5-1 · 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
•
PLATE THICKNESS: 0.060 INCHES NOMINAL IN
•
NUT LENGTH: 0.985 INCHES NOMINAL IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
PLATE WIDTH: 0.396 INCHES NOMINAL IN
•
MOUNTING HOLE ARRANGEMENT STYLE: 2 HOLES
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-A-12545 MIL SPEC SINGLE MATERIAL RESPONSE NUT
•
MOUNTING HOLE DIAMETER: 0.098 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
PLATE THICKNESS0.060 INCHES NOMINAL IN
NUT LENGTH0.985 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
PLATE WIDTH0.396 INCHES NOMINAL IN
MOUNTING HOLE ARRANGEMENT STYLE2 HOLES
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-A-12545 MIL SPEC SINGLE MATERIAL RESPONSE NUT
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-I-8846 MIL SPEC SINGLE MATERIAL RESPONSE LOCKING INSERT
MOUNTING HOLE DIAMETER0.098 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.138 INCHES IN
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
642AS1522-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is WSI-7-2.5-1?
WSI-7-2.5-1 is a NUT,SELF-LOCKING,PLATE.
What parts can replace WSI-7-2.5-1?
There is 1 known substitute for WSI-7-2.5-1: 642AS1522-1. Substitute compatibility should be verified for your specific system.
What is the NSN for WSI-7-2.5-1?
WSI-7-2.5-1 is cataloged in the U.S. Government catalog under NSN 5310-01-227-0597. 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.