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PartsTable / COMPONENT / J-956 PIECES 5-6
J-956 PIECES 5-6 ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The VALVE SEAT WITH GASKET is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING WORKING PARTS, body_design: ANGLE PATTERN, design_type: THERMOSTATIC, furnished_items: STRAINER, flange_facing_type: RAISED LOCATION NOT OTHERWISE SPECIFIED, inlet_connection_type: FLANGED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-060-8917, 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
J-956 PIECES 5-6
NSN: 4730-01-060-8917
FSC: 4730
CAGE: 53059 — SPIRAX SARCO INC DBA SPIRAX SARCO (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING WORKING PARTS
body_designANGLE PATTERN
design_typeTHERMOSTATIC
furnished_itemsSTRAINER
flange_facing_typeRAISED LOCATION NOT OTHERWISE SPECIFIED
inlet_connection_typeFLANGED
outlet_connection_typeFLANGED
end_item_identificationSUBMARINE APPLICATION
flange_bolt_hole_quantity4 LOCATION NOT OTHERWISE SPECIFIED
maximum_steam_working_pressureERR-060
rated_capacity_at_maximum_working_pressure1790.0 POUNDS OF WATER PER HOUR LBS
NSN4730-01-060-8917
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: J-956 PIECES 5-6 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
66886Interchangeable
interchangeable cross-reference
interchangeable
J-956Interchangeable
interchangeable cross-reference
interchangeable
1IN-TM-600-NInterchangeable
interchangeable cross-reference
interchangeable
58089X58090Interchangeable
Same NIIN cross-reference
interchangeable
J-956 PIECE 5 AND PIECE 6Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is J-956 PIECES 5-6?
J-956 PIECES 5-6 is a VALVE SEAT WITH GASKET.
What parts can replace J-956 PIECES 5-6?
There are 5 known substitutes for J-956 PIECES 5-6: 66886, J-956, 1IN-TM-600-N and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for J-956 PIECES 5-6?
J-956 PIECES 5-6 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-060-8917. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026