PartsTable
Technical Data Sheet

156/48B — NUT CASTLE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

156/48B: NUT CASTLE.

The NUT CASTLE is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5310-01-166-1531, 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
156/48B
NSN: 5310-01-166-1531
FSC: 5310 — Nuts and Washers
CAGE: K7018 — WELLMAN GROUP (GBR)
SPECIFICATIONS
Part Number156/48B
NSN5310-01-166-1531
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 156/48B · 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
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 3
X5008/12/156/48BSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
156 ITEM 48BSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
X5008/12/156 ITEM 48BSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 156/48B?
156/48B is a NUT CASTLE.
What parts can replace 156/48B?
There are 3 known substitutes for 156/48B: X5008/12/156/48B, 156 ITEM 48B, X5008/12/156 ITEM 48B. Substitute compatibility should be verified for your specific system.
What is the NSN for 156/48B?
156/48B is cataloged in the U.S. Government catalog under NSN 5310-01-166-1531. This indicates validated use in U.S. government and defense supply chains.
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