PartsTable
Technical Data Sheet
845-7286652-ITEM-57 ✓ 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,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY AND PLASTIC NUT, nut_style: HEXAGON, nut_height: 1.016 INCHES MINIMUM AND 1.078 INCHES MAXIMUM IN, temp_rating: 250.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNIFIED NATIONAL COARSE (UNC). This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-042-4968, 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
845-7286652-ITEM-57
NSN: 5310-00-042-4968
FSC: 5310
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialNICKEL ALLOY AND PLASTIC NUT
nut_styleHEXAGON
nut_height1.016 INCHES MINIMUM AND 1.078 INCHES MAXIMUM IN
temp_rating250.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
locking_featurePREVAILING TORQUE ALL METAL DESIGN OR PREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
width_across_flats1.428 INCHES MINIMUM AND 1.440 INCHES MAXIMUM IN
nominal_thread_size1.000 INCHES IN
bearing_surface_typeCHAMFERED
thread_quantity_per_inch8
NSN5310-00-042-4968
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 845-7286652-ITEM-57 · 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
DEPARTURE FROM CITED DESIGNATOR: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
MATERIAL: NICKEL ALLOY AND PLASTIC NUT
NUT HEIGHT: 1.016 INCHES MINIMUM AND 1.078 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH: 8
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
BEARING SURFACE TYPE: CHAMFERED
CRITICALITY CODE JUSTIFICATION: ZZZX
NOMINAL THREAD SIZE: 1.000 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
DEPARTURE FROM CITED DESIGNATORMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
MATERIALNICKEL ALLOY AND PLASTIC NUT
NUT HEIGHT1.016 INCHES MINIMUM AND 1.078 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH8
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
BEARING SURFACE TYPECHAMFERED
CRITICALITY CODE JUSTIFICATIONZZZX
NOMINAL THREAD SIZE1.000 INCHES IN
THREAD DIRECTIONRIGHT-HAND
NUT STYLEHEXAGON
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
A7I 3124 ITEM 4Interchangeable
interchangeable cross-reference
interchangeable
751-6402502 FIND 39Interchangeable
interchangeable cross-reference
interchangeable
4D98023 ITEM 135Interchangeable
interchangeable cross-reference
interchangeable
001.000-08ONC-3BInterchangeable
interchangeable cross-reference
interchangeable
4497645PC7Interchangeable
interchangeable cross-reference
interchangeable
MIL-N-25027Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 845-7286652-ITEM-57?
845-7286652-ITEM-57 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 845-7286652-ITEM-57?
There are 27 known substitutes for 845-7286652-ITEM-57: A7I 3124 ITEM 4, 751-6402502 FIND 39, 4D98023 ITEM 135 and 24 more. Substitute compatibility should be verified for your specific system.
Is 845-7286652-ITEM-57 still available?
845-7286652-ITEM-57 is currently cancelled.
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