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256907 — PUMP UNIT COMPLETE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

256907: PUMP UNIT COMPLETE.

The PUMP UNIT COMPLETE is a the manufacturer industrial component. Key specifications include criticality_code_justification: ZZZY, reference_number_differentiating_characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVSUP-WSS ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-609-3747, 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
256907
NSN: 5340-00-609-3747
NIINs: 006093747, 016477789
FSC: 5340 — Hardware, Commercial
CAGE: 82577 — RAYTHEON COMPANY DBA RAYTHEON (USA)
SPECIFICATIONS
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVSUP-WSS ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
NSN5340-00-609-3747
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 256907 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
LENGTH: 0.217 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
LOOP/HOLDING DIMENSION: 0.195 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.012 INCHES NOMINAL IN
•
DISTANCE FROM LOOP CENTER TO END: 0.937 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
WIDTH: 0.312 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.275 INCHES NOMINAL IN
LENGTH0.217 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
LOOP/HOLDING DIMENSION0.195 INCHES NOMINAL IN
MATERIAL THICKNESS0.012 INCHES NOMINAL IN
DISTANCE FROM LOOP CENTER TO END0.937 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OVERALL
WIDTH0.312 INCHES NOMINAL IN
MATERIALSTEEL COMP 1065 OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
6013-6AReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 256907?
256907 is a PUMP UNIT COMPLETE.
What parts can replace 256907?
There is 1 known substitute for 256907: 6013-6A. Substitute compatibility should be verified for your specific system.
What is the NSN for 256907?
256907 is cataloged in the U.S. Government catalog under NSN 5340-00-609-3747. 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.