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2AN149 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

2AN149: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.398 INCHES MINIMUM AND 0.446 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNF, hardness_rating: 95.5 ROCKWELL B MINIMUM AND 32.0 ROCKWELL C MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-842-1190, 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
2AN149
NSN: 5310-00-842-1190
FSC: 5310 — Nuts and Washers
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.398 INCHES MINIMUM AND 0.446 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNF
hardness_rating95.5 ROCKWELL B MINIMUM AND 32.0 ROCKWELL C MAXIMUM
thread_directionRIGHT-HAND
surface_treatmentCADMIUM AND CHROMATE OVERALL
width_across_flats1.088 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
nominal_thread_size0.750 INCHES IN
bearing_surface_typeCHAMFERED OR WASHER FACED
end_item_identificationARMORED MULTI-PURPOSE VEHICLE (AMPV); A4 BRADLEY FIGHTING VEHICLE; A3 BRADLEY FIGHTING VEHICLE
NSN5310-00-842-1190
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2AN149 · 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
•
WIDTH ACROSS FLATS: 1.088 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNF
•
HARDNESS RATING: 95.5 ROCKWELL B MINIMUM AND 32.0 ROCKWELL C MAXIMUM
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.750 INCHES IN
•
NONDEFINITIVE SPEC/STD DATA: 2 TYPE AND 5 STYLE AND B GRADE
•
NUT HEIGHT: 0.398 INCHES MINIMUM AND 0.446 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS1.088 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNF
HARDNESS RATING95.5 ROCKWELL B MINIMUM AND 32.0 ROCKWELL C MAXIMUM
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.750 INCHES IN
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 5 STYLE AND B GRADE
NUT HEIGHT0.398 INCHES MINIMUM AND 0.446 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
NUT STYLEHEXAGON
SUBSTITUTES & CROSS-REFERENCES 9
6KP525Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
2HB155Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
8526234Reference document
Same NSN cross-reference
Reference document — Replaced / superseded reference
853126Reference document
Same NSN cross-reference
Reference document — Secondary reference
FF-N-836Reference document
Same NSN cross-reference
Reference document — Identification reference
13207E7300FN52Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2AN149?
2AN149 is a NUT,PLAIN,HEXAGON.
What parts can replace 2AN149?
There are 9 known substitutes for 2AN149: 6KP525, 2HB155, 8526234 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2AN149?
2AN149 is cataloged in the U.S. Government catalog under NSN 5310-00-842-1190. 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.