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ST3M541-3A2 — NUT,SELF-LOCKING,PLATE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

ST3M541-3A2: NUT,SELF-LOCKING,PLATE.

The NUT,SELF-LOCKING,PLATE is a the manufacturer industrial component. Key specifications include material: STEEL BASE, nut_style: PLATE, nut_length: 0.948 INCHES MAXIMUM IN, lubrication: DRY FILM LUBRICANT, plate_width: 0.454 INCHES MAXIMUM IN, temp_rating: 450.0 FAHRENHEIT NOMINAL DEGF. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-101-5840, 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
ST3M541-3A2
NSN: 5310-00-101-5840
FSC: 5310 — Nuts and Washers
CAGE: 15653 — HOWMET GLOBAL FASTENING SYSTEMS INC (USA)
SPECIFICATIONS
materialSTEEL BASE
nut_stylePLATE
nut_length0.948 INCHES MAXIMUM IN
lubricationDRY FILM LUBRICANT
plate_width0.454 INCHES MAXIMUM IN
temp_rating450.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
locking_featurePREVAILING TORQUE ALL METAL DESIGN
special_featuresCLIP MATERIAL CRES AND CLIP SURFACE TREATMENT PASSIVATED
thread_directionRIGHT-HAND
features_providedFLOATING NUT
NSN5310-00-101-5840
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: ST3M541-3A2 · 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
•
LUBRICATION: DRY FILM LUBRICANT
•
NUT LENGTH: 0.948 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY2,CL2 FED SPEC SINGLE TREATMENT RESPONSE NUT
•
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
•
PLATE WIDTH: 0.454 INCHES MAXIMUM IN
•
TEMP RATING: 450.0 FAHRENHEIT NOMINAL DEGF
•
MOUNTING HOLE ARRANGEMENT STYLE: 2 HOLES
TECHNICAL CHARACTERISTICS
LUBRICATIONDRY FILM LUBRICANT
NUT LENGTH0.948 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY2,CL2 FED SPEC SINGLE TREATMENT RESPONSE NUT
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY2,CL2 FED SPEC SINGLE TREATMENT RESPONSE BASE
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
PLATE WIDTH0.454 INCHES MAXIMUM IN
TEMP RATING450.0 FAHRENHEIT NOMINAL DEGF
MOUNTING HOLE ARRANGEMENT STYLE2 HOLES
REMOVABLE NUT MANUFACTURER PART NUMBERST3M445A3M2
MOUNTING HOLE DIAMETER0.098 INCHES MINIMUM AND 0.103 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 6
RMF19421-2-3Reference document
Same NSN cross-reference
Reference document — Secondary reference
BFN541-3-2Reference document
Same NSN cross-reference
Reference document — Secondary reference
F14421-2-3Reference document
Same NSN cross-reference
Reference document — Secondary reference
F4906N3-2Reference document
Same NSN cross-reference
Reference document — Secondary reference
F49069N3-2Reference document
Same NSN cross-reference
Reference document — Secondary reference
10116553Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ST3M541-3A2?
ST3M541-3A2 is a NUT,SELF-LOCKING,PLATE.
What parts can replace ST3M541-3A2?
There are 6 known substitutes for ST3M541-3A2: RMF19421-2-3, BFN541-3-2, F14421-2-3 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ST3M541-3A2?
ST3M541-3A2 is cataloged in the U.S. Government catalog under NSN 5310-00-101-5840. 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.