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INS31520 — OUTLET,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

INS31520: OUTLET,PIPE.

The OUTLET,PIPE is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYVINYLIDENE FLUORIDE PLUG, special_features: SIZE 8", recess_nominal_depth: 2.88 INCHES INLET IN, raised_face_nominal_diameter: 2.100 INCHES INLET IN, part_name_assigned_by_controlling_agency: CARBON STEEL WELD-ON WELDOLETS FOR USE W/SCH40 METAL PIPE. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-653-5384, 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
INS31520
NSN: 4730-01-653-5384
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 29899 — CALGON CARBON UV TECHNOLOGIES LLC DBA HYDE MARINE (USA)
SPECIFICATIONS
materialPLASTIC POLYVINYLIDENE FLUORIDE PLUG
special_featuresSIZE 8"
recess_nominal_depth2.88 INCHES INLET IN
raised_face_nominal_diameter2.100 INCHES INLET IN
part_name_assigned_by_controlling_agencyCARBON STEEL WELD-ON WELDOLETS FOR USE W/SCH40 METAL PIPE
NSN4730-01-653-5384
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: INS31520 · 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
•
RECESS NOMINAL DEPTH: 2.88 INCHES INLET IN
•
MATERIAL: STEEL BODY
•
RAISED FACE NOMINAL DIAMETER: 2.100 INCHES INLET IN
TECHNICAL CHARACTERISTICS
RECESS NOMINAL DEPTH2.88 INCHES INLET IN
SPECIAL FEATURESSIZE 8"
PART NAME ASSIGNED BY CONTROLLING AGENCYCARBON STEEL WELD-ON WELDOLETS FOR USE W/SCH40 METAL PIPE
MATERIALSTEEL BODY
MATERIALPLASTIC POLYVINYLIDENE FLUORIDE PLUG
RAISED FACE NOMINAL DIAMETER2.100 INCHES INLET 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 1
40090501Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is INS31520?
INS31520 is a OUTLET,PIPE.
What parts can replace INS31520?
There is 1 known substitute for INS31520: 40090501. Substitute compatibility should be verified for your specific system.
What is the NSN for INS31520?
INS31520 is cataloged in the U.S. Government catalog under NSN 4730-01-653-5384. 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.