PartsTable
Technical Data Sheet
125629 ✓ Verified by PartsTable
Disguise · 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 INJECTOR ASSEMBLY,FUEL is a Disguise industrial component. Key specifications include special_features: ENGINE,DIESEL MDL MO256K43, end_item_identification: FUEL PUMP, UNIT INJECTOR, PIPE (TA 0302, 03026194/0), engine_design_control_activity: SK849, engine_model_number_for_which_designed: MO256K43, part_name_assigned_by_controlling_agency: UNIT INJECTOR + SEALINGS 2176557/0 (PUMPEDUESE + DICHTUNGEN 2176557/0). This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-012-5629, 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
125629
NSN: 5310-00-012-5629
FSC: 5310
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
special_featuresENGINE,DIESEL MDL MO256K43
end_item_identificationFUEL PUMP, UNIT INJECTOR, PIPE (TA 0302, 03026194/0)
engine_design_control_activitySK849
engine_model_number_for_which_designedMO256K43
part_name_assigned_by_controlling_agencyUNIT INJECTOR + SEALINGS 2176557/0 (PUMPEDUESE + DICHTUNGEN 2176557/0)
NSN5310-00-012-5629
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 125629 · Disguise ⚠ 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
NUT STYLE: HEXAGON
THREAD SERIES: UNF
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
THREAD QUANTITY PER INCH: 18
NOMINAL THREAD SIZE: 0.625 INCHES IN
THREAD DIRECTION: RIGHT-HAND
SURFACE TREATMENT: CADMIUM OR ZINC OVERALL
NONDEFINITIVE SPEC/STD DATA: A TYPE
TECHNICAL CHARACTERISTICS (FLIS)
NUT STYLEHEXAGON
THREAD SERIESUNF
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
THREAD QUANTITY PER INCH18
NOMINAL THREAD SIZE0.625 INCHES IN
THREAD DIRECTIONRIGHT-HAND
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
NONDEFINITIVE SPEC/STD DATAA TYPE
MATERIALSTEEL OVERALL
DEPARTURE FROM CITED DOCUMENTAS MODIFIED BY OVER-ALL HIEGHT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
425-4Interchangeable
interchangeable cross-reference
interchangeable
25953-2-12Interchangeable
interchangeable cross-reference
interchangeable
310-0027-000Interchangeable
interchangeable cross-reference
interchangeable
102036XInterchangeable
interchangeable cross-reference
interchangeable
JJA2964-1Interchangeable
interchangeable cross-reference
interchangeable
1JA2964-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 125629?
125629 is a INJECTOR ASSEMBLY,FUEL manufactured by Disguise.
What parts can replace 125629?
There are 14 known substitutes for 125629: 425-4, 25953-2-12, 310-0027-000 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 125629?
125629 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-012-5629. This indicates validated use in U.S. government and defense supply chains.
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