PartsTable
Technical Data Sheet
MS35649-2255B ✓ Verified by PartsTable
· NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 651 OVERALL, nut_style: HEXAGON, nut_height: 0.482 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), thread_direction: RIGHT-HAND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-855-1102, 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
MS35649-2255B
NSN: 5310-00-855-1102
FSC: 5310
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialCOPPER ALLOY 651 OVERALL
nut_styleHEXAGON
nut_height0.482 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
thread_directionRIGHT-HAND
surface_treatmentOXIDE OVERALL
width_across_flats0.423 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN
nominal_thread_size0.250 INCHES IN
bearing_surface_typeCHAMFERED OR WASHER FACED
thread_quantity_per_inch20
material_document_and_classificationQQ-C-591 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-855-1102
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MS35649-2255B · 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 CLASS: 2B
BEARING SURFACE TYPE: CHAMFERED
NOMINAL THREAD SIZE: 0.250 INCHES IN
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH: 20
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-637,ALLOY 462 FED SPEC 1ST MATERIAL RESPONSE OR QQ-B-637,ALLOY 464 FED SPEC 2ND MATERIAL RESPONSE OVERALL
MATERIAL: COPPER ALLOY 462 OR COPPER ALLOY 464 OVERALL
NONDEFINITIVE SPEC/STD DATA: 2 TYPE AND 13 STYLE
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2B
BEARING SURFACE TYPECHAMFERED
NOMINAL THREAD SIZE0.250 INCHES IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH20
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-637,ALLOY 462 FED SPEC 1ST MATERIAL RESPONSE OR QQ-B-637,ALLOY 464 FED SPEC 2ND MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY 462 OR COPPER ALLOY 464 OVERALL
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 13 STYLE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-F-495 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTBLACK OXIDE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
8045Interchangeable
interchangeable cross-reference
interchangeable
GGG-W-636 TY1CL2ST1Interchangeable
interchangeable cross-reference
interchangeable
40-4-5Interchangeable
interchangeable cross-reference
interchangeable
484-4Interchangeable
interchangeable cross-reference
interchangeable
R883B198Interchangeable
interchangeable cross-reference
interchangeable
S276-1684P1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS35649-2255B?
MS35649-2255B is a NUT,PLAIN,HEXAGON.
What parts can replace MS35649-2255B?
There are 25 known substitutes for MS35649-2255B: 8045, GGG-W-636 TY1CL2ST1, 40-4-5 and 22 more. Substitute compatibility should be verified for your specific system.
Is MS35649-2255B still available?
MS35649-2255B is currently cancelled.
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