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DLH6625-048 — NUT,SELF-LOCKING,EXTENDED WASHER

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

DLH6625-048: NUT,SELF-LOCKING,EXTENDED WASHER.

NUT,SELF-LOCKING,EXTENDED WASHER. Key specifications include material: STEEL COMP 8740 OVERALL, nut_style: DOUBLE HEXAGON, thread_class: 3B, thread_series: UNF, overall_height: 0.318 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN, locking_feature: PREVAILING TORQUE ALL METAL DESIGN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-941-9643, 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
DLH6625-048
NSN: 5310-00-941-9643
FSC: 5310 — Nuts and Washers
CAGE: 019L2 — ESNA, LLC (USA)
SPECIFICATIONS
materialSTEEL COMP 8740 OVERALL
nut_styleDOUBLE HEXAGON
thread_class3B
thread_seriesUNF
overall_height0.318 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
locking_featurePREVAILING TORQUE ALL METAL DESIGN
thread_directionRIGHT-HAND
washer_thickness0.047 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN
surface_treatmentCADMIUM OVERALL
width_across_flats0.306 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN
nominal_thread_size0.250 INCHES IN
washer_outside_diameter0.400 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
NSN5310-00-941-9643
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: DLH6625-048 · 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
•
WASHER OUTSIDE DIAMETER: 0.400 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
•
WIDTH ACROSS FLATS: 0.306 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN
•
THREAD SERIES: UNF
•
WASHER THICKNESS: 0.047 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.318 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
WASHER OUTSIDE DIAMETER0.400 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
WIDTH ACROSS FLATS0.306 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN
THREAD SERIESUNF
WASHER THICKNESS0.047 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.250 INCHES IN
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
SURFACE TREATMENTCADMIUM OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
489168Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 DLH6625-048?
DLH6625-048 is a NUT,SELF-LOCKING,EXTENDED WASHER.
What parts can replace DLH6625-048?
There is 1 known substitute for DLH6625-048: 489168. Substitute compatibility should be verified for your specific system.
What is the NSN for DLH6625-048?
DLH6625-048 is cataloged in the U.S. Government catalog under NSN 5310-00-941-9643. 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.