PartsTable
Technical Data Sheet
W1325 ✓ Verified by PartsTable
· MRO · MRO_GENERAL
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

RESISTOR,VARIABLE,WIRE WOUND,NON. Key specifications include material: COPPER ALLOY OVERALL, scale_name: PRESSURE, scale_type: DIAL, shaft_style: ROUND, SLOTTED, reducer_type: CONCENTRIC, shaft_length: 0.875 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 4730-00-277-6596, 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
MRO MRO_GENERAL W1325
NSN: 4730-00-277-6596
FSC: 4730
CAGE: 41947 — MUELLER BRASS CO. (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
scale_namePRESSURE
scale_typeDIAL
shaft_styleROUND, SLOTTED
reducer_typeCONCENTRIC
shaft_length0.875 INCHES NOMINAL IN
actuator_typeSINGLE SHAFT
shaft_diameter0.250 INCHES NOMINAL IN
connection_typeUNTHREADED EXTERNAL TUBE SECOND END
mounting_methodSTANDARD BUSHING
connection_stylePLAIN (TUBE) SECOND END
section_quantity1
NSN4730-00-277-6596
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: W1325 · 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
KEY FEATURES
CONNECTION TYPE: UNTHREADED EXTERNAL TUBE SECOND END
CONNECTION STYLE: PLAIN (TUBE) SECOND END
NOMINAL OVERALL LENGTH: 1.750 INCHES IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.875 INCHES FIRST END IN
REDUCER TYPE: CONCENTRIC
MATERIAL: COPPER ALLOY OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION TYPEUNTHREADED EXTERNAL TUBE SECOND END
CONNECTION TYPEUNTHREADED INTERNAL TUBE FIRST END
CONNECTION STYLEPLAIN (TUBE) SECOND END
NOMINAL OVERALL LENGTH1.750 INCHES IN
CONNECTION STYLEPLAIN (TUBE) FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.875 INCHES FIRST END IN
REDUCER TYPECONCENTRIC
MATERIALCOPPER ALLOY OVERALL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.750 INCHES SECOND END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
MRS0158S03PN000Interchangeable
interchangeable cross-reference
interchangeable
3935Interchangeable
interchangeable cross-reference
interchangeable
3935-1Interchangeable
interchangeable cross-reference
interchangeable
871111557Interchangeable
interchangeable cross-reference
interchangeable
1CX8Interchangeable
interchangeable cross-reference
interchangeable
TAHAC-151/2GZSInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is W1325?
W1325 is a RESISTOR,VARIABLE,WIRE WOUND,NON. It is classified as a MRO (MRO_GENERAL).
What parts can replace W1325?
There are 17 known substitutes for W1325: MRS0158S03PN000, 3935, 3935-1 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for W1325?
W1325 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-277-6596. This indicates validated use in U.S. government and defense supply chains.
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