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BH-03 — NUT,SELF-LOCKING,ROUND

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

BH-03: NUT,SELF-LOCKING,ROUND.

The NUT,SELF-LOCKING,ROUND is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYAMIDE NYLON LOCKING INSERT, nut_style: ROUND, nut_diameter: 1.110 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN, nut_thickness: 0.334 INCHES MINIMUM AND 0.354 INCHES MAXIMUM IN, thread_series: UNS, locking_feature: PREVAILING TORQUE WITH NONMETALLIC INSERT. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-022-9004, 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
BH-03
NSN: 5310-01-022-9004
FSC: 5310 — Nuts and Washers
CAGE: 79568 — WHITTET-HIGGINS COMPANY (USA)
SPECIFICATIONS
materialPLASTIC POLYAMIDE NYLON LOCKING INSERT
nut_styleROUND
nut_diameter1.110 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
nut_thickness0.334 INCHES MINIMUM AND 0.354 INCHES MAXIMUM IN
thread_seriesUNS
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
drive_point_depth0.102 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN
drive_point_width0.105 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
nominal_thread_size0.664 INCHES IN
drive_point_quantity4
thread_pitch_diameters+0.6437 TO 0.6467 INCHES IN
NSN5310-01-022-9004
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: BH-03 · 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
•
THREAD SERIES: UNS
•
THREAD PITCH DIAMETERS: +0.6437 TO 0.6467 INCHES IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD 2ND MATERIAL RESPONSE OVERALL EXCEPT INSERT
•
DRIVE POINT WIDTH: 0.105 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.664 INCHES IN
•
NUT DIAMETER: 1.110 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
•
DRIVE POINT DEPTH: 0.102 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
THREAD SERIESUNS
THREAD PITCH DIAMETERS+0.6437 TO 0.6467 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD 2ND MATERIAL RESPONSE OVERALL EXCEPT INSERT
DRIVE POINT WIDTH0.105 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.664 INCHES IN
NUT DIAMETER1.110 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
DRIVE POINT DEPTH0.102 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN
LOCKING FEATUREPREVAILING TORQUE WITH NONMETALLIC INSERT
NUT THICKNESS0.334 INCHES MINIMUM AND 0.354 INCHES MAXIMUM 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 5
457023 ITEM 99Reference document
Same NSN cross-reference
Reference document — Secondary reference
2503-78 ITEM 99Reference document
Same NSN cross-reference
Reference document — Secondary reference
2503-86 ITEM 99Reference document
Same NSN cross-reference
Reference document — Secondary reference
501-4457017 ITEM 99Reference document
Same NSN cross-reference
Reference document — Secondary reference
TBL N0 3Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is BH-03?
BH-03 is a NUT,SELF-LOCKING,ROUND.
What parts can replace BH-03?
There are 5 known substitutes for BH-03: 457023 ITEM 99, 2503-78 ITEM 99, 2503-86 ITEM 99 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BH-03?
BH-03 is cataloged in the U.S. Government catalog under NSN 5310-01-022-9004. This indicates validated use in U.S. government and defense supply chains.
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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.