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2321278 ✓ 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

CABLE ASSEMBLY,SPECIAL PURPOSE,E. Key specifications include color: ORANGE, length: 0.250 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN, material: PLASTIC OVERALL, body_width: 0.483 INCHES MINIMUM AND 0.497 INCHES MAXIMUM IN, head_style: HEXAGON, body_height: 0.150 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-278-4240, 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
2321278
NSN: 4730-00-278-4240
FSC: 4730
CAGE: 50737 — SCHRECK INDUSTRIES INC (USA)
SPECIFICATIONS
colorORANGE
length0.250 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
materialPLASTIC OVERALL
body_width0.483 INCHES MINIMUM AND 0.497 INCHES MAXIMUM IN
head_styleHEXAGON
body_height0.150 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN
body_length0.983 INCHES MINIMUM AND 0.997 INCHES MAXIMUM IN
design_typeONE-PIECE
grip_length0.251 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
shank_styleSTUMP
constructionSINGLE SIDED
head_diameter0.75 INCHES NOMINAL IN
NSN4730-00-278-4240
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 2321278 · 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
23-1688Interchangeable
interchangeable cross-reference
interchangeable
335-821Interchangeable
interchangeable cross-reference
interchangeable
245-335821-000Interchangeable
interchangeable cross-reference
interchangeable
SM-A-698353Interchangeable
interchangeable cross-reference
interchangeable
14205Interchangeable
interchangeable cross-reference
interchangeable
650021Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2321278?
2321278 is a CABLE ASSEMBLY,SPECIAL PURPOSE,E.
What parts can replace 2321278?
There are 21 known substitutes for 2321278: 23-1688, 335-821, 245-335821-000 and 18 more. Substitute compatibility should be verified for your specific system.
Is 2321278 still available?
2321278 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