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B-52611 — HEAD,SPRINKLER,FIRE PROTECTION

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

B-52611: HEAD,SPRINKLER,FIRE PROTECTION.

The HEAD,SPRINKLER,FIRE PROTECTION is a the manufacturer industrial component. Key specifications include material: COPPER, construction: SOLID, overall_length: 2.964 INCHES NOMINAL IN, surface_treatment: NICKEL, cross-sectional_width: 0.500 INCHES NOMINAL IN, cross-sectional_height: 0.062 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-513-9615, 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
B-52611
NSN: 4730-01-513-9615
NIINs: 015139615, 015139618, 015139621, 015139625, 015139626, 015139629, 015139630, 015139632, 015147475
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 1CSX7 — CHEMETRON FIRE SYSTEMS (USA)
SPECIFICATIONS
materialCOPPER
constructionSOLID
overall_length2.964 INCHES NOMINAL IN
surface_treatmentNICKEL
cross-sectional_width0.500 INCHES NOMINAL IN
cross-sectional_height0.062 INCHES NOMINAL IN
mounting_configurationWO 0.181 IN.DIA HOLES 0.750 IN.C TO C IN
body_cross-sectional_shapeRECTANGULAR
NSN4730-01-513-9615
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: B-52611 · 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
SUBSTITUTES & CROSS-REFERENCES 1
1-037-1153Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 B-52611?
B-52611 is a HEAD,SPRINKLER,FIRE PROTECTION.
What parts can replace B-52611?
There is 1 known substitute for B-52611: 1-037-1153. Substitute compatibility should be verified for your specific system.
What is the NSN for B-52611?
B-52611 is cataloged in the U.S. Government catalog under NSN 4730-01-513-9615. 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.