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5174-5 — ARM ASSEMBLY,LOCKING

✓ Government record, cited
Legrand · HOSE FITTING
PRODUCT OVERVIEW

5174-5: ARM ASSEMBLY,LOCKING.

The ARM ASSEMBLY,LOCKING is a Legrand industrial component. Key specifications include material: STEEL COMP 316 AND STEEL COMP 316L STEM, stem_type: RISING, valve_size: 4.000 INCHES IN, bonnet_type: OUTSIDE SCREW-YOKE, pressure_class: ERR-060, connection_type: BUTT WELD PIPE. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-266-0538, 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
5174-5
NSN: 4730-00-266-0538
NIINs: 002660538, 004447242, 006741492, 008307994, 010869385, 011259804, 014628158, 015432311
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 34623 — AM GENERAL LLC (USA)
SPECIFICATIONS
materialSTEEL COMP 316 AND STEEL COMP 316L STEM
stem_typeRISING
valve_size4.000 INCHES IN
bonnet_typeOUTSIDE SCREW-YOKE
pressure_classERR-060
connection_typeBUTT WELD PIPE
special_featuresBODY MATERIAL FORGED F316 IS DUAL CERTIFIED F316/F316L
valve_operation_methodMANUAL
end_item_identificationCVN- REACTOR BOUNDARY AREA
bonnet_attachment_methodBOLTED
inlet_relationship_with_outletIDENTICAL
nominal_pipe_size_accommodated4.000 INCHES IN
NSN4730-00-266-0538
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 5174-5 · 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 10
48F6-4Reference document
Same NSN cross-reference
Reference document — Replaced / superseded reference
SAE-J513Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
8F-6-4Reference document
Same NSN cross-reference
Reference document — Replaced / superseded reference
7350882Reference document
Same NSN cross-reference
Reference document — Secondary reference
4730004084583Reference document
Same NSN cross-reference
Reference document — Informative reference only
5767D-0000Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5174-5?
5174-5 is a ARM ASSEMBLY,LOCKING manufactured by Legrand.
What parts can replace 5174-5?
There are 10 known substitutes for 5174-5: 48F6-4, SAE-J513, 8F-6-4 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5174-5?
5174-5 is cataloged in the U.S. Government catalog under NSN 4730-00-266-0538. 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.