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4253-137-4 — ADAPTER,STRAIGHT,TUBE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

4253-137-4: ADAPTER,STRAIGHT,TUBE TO BOSS.

The ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include shape: ROUND, material: PLASTIC POLYPROPYLENE LOCATION NOT OTHERWISE SPECIFIED, capacity_rating: 4.0 MILLILITERS, fsc_application_data: FOR LABORATORY USE, part_name_assigned_by_controlling_agency: BOTTLE SCREW CAP F/LAB USE 4ML CAP 500S. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-703-2335, 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
4253-137-4
NSN: 4730-00-703-2335
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 83395 — CONSOLIDATED WELDING AND ENGINEERING CO (USA)
SPECIFICATIONS
shapeROUND
materialPLASTIC POLYPROPYLENE LOCATION NOT OTHERWISE SPECIFIED
capacity_rating4.0 MILLILITERS
fsc_application_dataFOR LABORATORY USE
part_name_assigned_by_controlling_agencyBOTTLE SCREW CAP F/LAB USE 4ML CAP 500S
NSN4730-00-703-2335
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4253-137-4 · 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
980709Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4253-137-4?
4253-137-4 is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace 4253-137-4?
There is 1 known substitute for 4253-137-4: 980709. Substitute compatibility should be verified for your specific system.
What is the NSN for 4253-137-4?
4253-137-4 is cataloged in the U.S. Government catalog under NSN 4730-00-703-2335. 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.