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Technical Data Sheet
PartsTable / COMPONENT / 961-44
961-44 ✓ Verified by PartsTable
Mobiparts · 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

Mobiparts Silicone Cover with soft-touch Design: firm, perfect fit and a slim design Colour: made in the most vivid, beautiful season colours Lining: velvet, microfiber inner lining protects against scratches Material: durable silicone Finishing: soft-touch finish, feels great in your hand Buttons: the shape of the silicon case fits seamless over the volume buttons without adding bulk Qi wireless charging compatible: yes Raized edges: yes on the front to protect display Compatible with: Samsung Galaxy S10 Available in vivid colours: Black, Scarlet Red, Blueberry Blue, Plum Red, Soft Salmon and Royal Grey This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-975-2075, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
961-44
NSN: 5310-00-975-2075
FSC: 5310
CAGE: 27847 — UNICONTROL INC HAYS CLEVELAND DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.210 INCHES MINIMUM AND 0.227 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNF
hardness_rating95.0 ROCKWELL B MINIMUM AND 32.0 ROCKWELL C MAXIMUM
thread_directionRIGHT-HAND
surface_treatmentCADMIUM AND CHROMATE OVERALL
width_across_flats0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
nominal_thread_size0.375 INCHES IN
bearing_surface_typeCHAMFERED OR WASHER FACED
end_item_identificationLOGISTGICS SUPPORT VESSEL
NSN5310-00-975-2075
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 961-44 · Mobiparts ⚠ 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 OR WASHER FACED
•
THREAD QUANTITY PER INCH: 24
•
HARDNESS RATING: 95.0 ROCKWELL B MINIMUM AND 32.0 ROCKWELL C MAXIMUM
•
NOMINAL THREAD SIZE: 0.375 INCHES IN
•
WIDTH ACROSS FLATS: 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
•
THREAD SERIES: UNF
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2B
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
THREAD QUANTITY PER INCH24
HARDNESS RATING95.0 ROCKWELL B MINIMUM AND 32.0 ROCKWELL C MAXIMUM
NOMINAL THREAD SIZE0.375 INCHES IN
END ITEM IDENTIFICATIONLOGISTGICS SUPPORT VESSEL
WIDTH ACROSS FLATS0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
THREAD SERIESUNF
NUT HEIGHT0.210 INCHES MINIMUM AND 0.227 INCHES MAXIMUM IN
NUT STYLEHEXAGON
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
122236Interchangeable
interchangeable cross-reference
interchangeable
7396804Interchangeable
interchangeable cross-reference
interchangeable
FFB571TYPEAInterchangeable
interchangeable cross-reference
interchangeable
443921Interchangeable
interchangeable cross-reference
interchangeable
S273Interchangeable
interchangeable cross-reference
interchangeable
21193Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 961-44?
961-44 is a NUT,PLAIN,HEXAGON manufactured by Mobiparts.
What parts can replace 961-44?
There are 21 known substitutes for 961-44: 122236, 7396804, FFB571TYPEA and 18 more. Substitute compatibility should be verified for your specific system.
Is 961-44 still available?
961-44 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026