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Technical Data Sheet
PartsTable / MRO / 000321
000321 ✓ 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

CABLE ASSEMBLY,SPECIAL PURPOSE,E. Key specifications include body_height: 2.688 INCHES NOMINAL IN, overall_width: 2.000 INCHES NOMINAL IN, terminal_type: CONNECTOR, RECEPTACLE, overall_height: 4.312 INCHES NOMINAL IN, overall_length: 3.406 INCHES NOMINAL IN, mounting_method: UNTHREADED HOLE(S). This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-257-2123, 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→ 000321
NSN: 4730-00-257-2123
FSC: 4730
CAGE: 91340 — MET-PRO CORPORATION (USA)
SPECIFICATIONS
body_height2.688 INCHES NOMINAL IN
overall_width2.000 INCHES NOMINAL IN
terminal_typeCONNECTOR, RECEPTACLE
overall_height4.312 INCHES NOMINAL IN
overall_length3.406 INCHES NOMINAL IN
mounting_methodUNTHREADED HOLE(S)
style_designatorRECTANGULAR
pressure_switch_typeGAGE
contact_adjustabilityDEACTUATION POINT NOT ADJUSTABLE AND ACTUATION POINT ADJUSTABLE
contact_action_stimulusINCREASE
contact_adjustment_typeEXTERNAL ACTUATION POINT SCREW WITH SCALE
contact_stimulus_rating20.00 DEACTUATION POINT NOMINAL POUNDS PER SQUARE INCH GAGE
NSN4730-00-257-2123
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 000321 · 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
TYPICAL APPLICATIONS
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
WWP521TYPE2Interchangeable
interchangeable cross-reference
interchangeable
ASME B16.3 CL 150 3/4X1 INCHInterchangeable
interchangeable cross-reference
interchangeable
MS39232-9Interchangeable
interchangeable cross-reference
interchangeable
WWP521Interchangeable
interchangeable cross-reference
interchangeable
7534Interchangeable
interchangeable cross-reference
interchangeable
MS39232-15Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 000321?
000321 is a CABLE ASSEMBLY,SPECIAL PURPOSE,E. It is classified as a MRO (MRO_GENERAL).
What parts can replace 000321?
There are 21 known substitutes for 000321: WWP521TYPE2, ASME B16.3 CL 150 3/4X1 INCH, MS39232-9 and 18 more. Substitute compatibility should be verified for your specific system.
Is 000321 still available?
000321 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026