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Technical Data Sheet
125250 ✓ Verified by PartsTable
Hama · 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,SLOTTED,HEXAGON is a Hama industrial component. Key specifications include material: STEEL OVERALL, end_style: SHORT TWISTED HOOK BOTH ENDS, design_type: CLOSED, hook_radius: 0.047 INCHES NOMINAL BOTH ENDS IN, coil_quantity: 58, inside_diameter: 0.119 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-012-5250, 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
125250
NSN: 5310-00-012-5250
FSC: 5310
CAGE: 81601 — NORFOLK NAVAL SHIPYARD (USA)
SPECIFICATIONS
materialSTEEL OVERALL
end_styleSHORT TWISTED HOOK BOTH ENDS
design_typeCLOSED
hook_radius0.047 INCHES NOMINAL BOTH ENDS IN
coil_quantity58
inside_diameter0.119 INCHES NOMINAL IN
style_designatorCYLINDRICAL
spring_free_length1.126 INCHES NOMINAL IN
coil_helix_directionRIGHT-HAND
spring_free_outside_diameter0.147 INCHES NOMINAL IN
NSN5310-00-012-5250
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 125250 · Hama ⚠ 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
NOMINAL THREAD SIZE: 0.500 INCHES IN
THREAD SERIES: UNF
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
THREAD QUANTITY PER INCH: 20
SURFACE TREATMENT: CADMIUM OR ZINC OVERALL
MATERIAL: STEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-633-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD CLASS: 2B
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.500 INCHES IN
THREAD SERIESUNF
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
THREAD QUANTITY PER INCH20
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
MATERIALSTEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-633-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD CLASS2B
NUT STYLESLOTTED, HEXAGON
NUT HEIGHT0.438 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
6748Interchangeable
interchangeable cross-reference
interchangeable
6748-00Interchangeable
interchangeable cross-reference
interchangeable
181-17Interchangeable
interchangeable cross-reference
interchangeable
125250Interchangeable
interchangeable cross-reference
interchangeable
521252502Interchangeable
interchangeable cross-reference
interchangeable
S1107Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 125250?
125250 is a NUT,PLAIN,SLOTTED,HEXAGON manufactured by Hama.
What parts can replace 125250?
There are 15 known substitutes for 125250: 6748, 6748-00, 181-17 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 125250?
125250 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-012-5250. This indicates validated use in U.S. government and defense supply chains.
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