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Technical Data Sheet
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051-00001 — PUMPING UNIT,HYDRAULIC,POWER DRI

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

051-00001: PUMPING UNIT,HYDRAULIC,POWER DRI.

PUMPING UNIT,HYDRAULIC,POWER DRI. Key specifications include fsc_application_data: FIREFIGHTING EQUIPMENT, end_item_identification: TRUCK,FIRE FIGHTING,A/S32-P18 TRUCK,FIREFIGHTING,NSN 4210011375970, hydraulic_fluid_flow_rate: 500.0 GALLONS PER MINUTE, part_name_assigned_by_controlling_agency: PUMP,WATER,FIRETRUCK. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-816-9401, 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
051-00001
NSN: 5310-00-816-9401
NIINs: 008169401, 009250130, 012732673
FSC: 5310 — Nuts and Washers
CAGE: 28480 — HEWLETT-PACKARD COMPANY DBA HP (USA)
SPECIFICATIONS
fsc_application_dataFIREFIGHTING EQUIPMENT
end_item_identificationTRUCK,FIRE FIGHTING,A/S32-P18 TRUCK,FIREFIGHTING,NSN 4210011375970
hydraulic_fluid_flow_rate500.0 GALLONS PER MINUTE
part_name_assigned_by_controlling_agencyPUMP,WATER,FIRETRUCK
NSN5310-00-816-9401
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 051-00001 · 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 SERIES: UNIFIED NATIONAL COARSE (UNC)
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.138 INCHES IN
•
NUT DIAMETER: 0.313 INCHES NOMINAL IN
•
PILOT DIAMETER: 0.187 INCHES NOMINAL IN
•
PILOT LENGTH: 0.054 INCHES NOMINAL IN
•
NUT HEIGHT: 0.116 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
TECHNICAL CHARACTERISTICS
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.138 INCHES IN
NUT DIAMETER0.313 INCHES NOMINAL IN
PILOT DIAMETER0.187 INCHES NOMINAL IN
PILOT LENGTH0.054 INCHES NOMINAL IN
NUT HEIGHT0.116 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
NUT STYLECLINCH
THREAD CLASS2B
SUBSTITUTES & CROSS-REFERENCES 3
410815-601Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
CL632-1CReference document
Same NSN cross-reference
Reference document — Secondary reference
334-0555-000Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 051-00001?
051-00001 is a PUMPING UNIT,HYDRAULIC,POWER DRI.
What parts can replace 051-00001?
There are 3 known substitutes for 051-00001: 410815-601, CL632-1C, 334-0555-000. Substitute compatibility should be verified for your specific system.
What is the NSN for 051-00001?
051-00001 is cataloged in the U.S. Government catalog under NSN 5310-00-816-9401. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.