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BB55S51-23PC3530 — PLUG,TUBE REPAIR

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

BB55S51-23PC3530: PLUG,TUBE REPAIR.

The PLUG,TUBE REPAIR is a the manufacturer industrial component. Key specifications include material: STEEL, major_diameter: 1.375 INCHES NOMINAL IN, minor_diameter: 1.188 INCHES NOMINAL IN, hole_thread_size: 5/8-12 NC, nominal_overall_length: 3.000 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-142-2691, 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
BB55S51-23PC3530
NSN: 4730-00-142-2691
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL
major_diameter1.375 INCHES NOMINAL IN
minor_diameter1.188 INCHES NOMINAL IN
hole_thread_size5/8-12 NC
nominal_overall_length3.000 INCHES IN
NSN4730-00-142-2691
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: BB55S51-23PC3530 · 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
•
NOMINAL OVERALL LENGTH: 3.000 INCHES IN
•
HOLE THREAD SIZE: 5/8-12 NC
•
MINOR DIAMETER: 1.188 INCHES NOMINAL IN
•
MATERIAL: STEEL
•
MAJOR DIAMETER: 1.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
NOMINAL OVERALL LENGTH3.000 INCHES IN
HOLE THREAD SIZE5/8-12 NC
MINOR DIAMETER1.188 INCHES NOMINAL IN
MATERIALSTEEL
MAJOR DIAMETER1.375 INCHES NOMINAL IN
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES 5
BB55S51-22PC3530Reference document
Same NSN cross-reference
Reference document — Secondary reference
CL119S5103-391076ALT5PC18Reference document
Same NSN cross-reference
Reference document — Secondary reference
CL119S5103-391077ALT3PC18Reference document
Same NSN cross-reference
Reference document — Secondary reference
BB55S51-0122PC3530Reference document
Same NSN cross-reference
Reference document — Secondary reference
BB55S51-0121PC3530Reference 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 BB55S51-23PC3530?
BB55S51-23PC3530 is a PLUG,TUBE REPAIR.
What parts can replace BB55S51-23PC3530?
There are 5 known substitutes for BB55S51-23PC3530: BB55S51-22PC3530, CL119S5103-391076ALT5PC18, CL119S5103-391077ALT3PC18 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BB55S51-23PC3530?
BB55S51-23PC3530 is cataloged in the U.S. Government catalog under NSN 4730-00-142-2691. 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.