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653-001 — CONTROLLER,FLOW TESTER

✓ Government record, cited
Legrand · HOSE FITTING
PRODUCT OVERVIEW

653-001: CONTROLLER,FLOW TESTER.

The CONTROLLER,FLOW TESTER is a Legrand industrial component. This part is cataloged in the U.S. Government catalog under NSN 4730-01-202-3731, 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
653-001
NSN: 4730-01-202-3731
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 11457 — VERMEER MANUFACTURING COMPANY DBA VERMEER CORPORATION (USA)
SPECIFICATIONS
general_characteristics_item_description1.062 IN. LG;1.560 IN. H;0.800 IN. W;TWO 0.193 IN. DIA MTG HOLES SPACED 1.220 IN. C TO C;0.125 IN. ANPT INTERNAL THD CONNECTION;DESIGNED FOR OXYGEN BB-O-925 TY 1 GR A IN
NSN4730-01-202-3731
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 653-001 · Legrand ⚠ 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 653-001?
653-001 is a CONTROLLER,FLOW TESTER manufactured by Legrand.
What is the NSN for 653-001?
653-001 is cataloged in the U.S. Government catalog under NSN 4730-01-202-3731. 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.