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3308631 — RESTRICTOR,FLUID FLOW

✓ Government record, cited
MISSION SYSTEMS DAVENPORT INC. · HOSE FITTING
PRODUCT OVERVIEW

3308631: RESTRICTOR,FLUID FLOW.

The RESTRICTOR,FLUID FLOW is a MISSION SYSTEMS DAVENPORT INC. industrial component. Key specifications include LENGTH: 0.880 INCHES NOMINAL IN, MATERIAL: COPPER ALLOY, DESIGN TYPE: TUBULAR, HEX SHAPE, THREAD LENGTH: 0.400 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, THREAD SERIES: NPTF LOCATION NOT OTHERWISE SPECIFIED, ORIFICE DIAMETER: 0.0099 INCHES MINIMUM AND 0.0105 INCHES MAXIMUM IN.

This part is cataloged in the U.S. Government catalog under NSN 4730-01-486-9400, 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
3308631
NSN: 4730-01-486-9400
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 99251 — MISSION SYSTEMS DAVENPORT INC. (USA)
SPECIFICATIONS
LENGTH0.880 INCHES NOMINAL IN
MATERIALCOPPER ALLOY
DESIGN TYPETUBULAR, HEX SHAPE
THREAD LENGTH0.400 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
THREAD SERIESNPTF LOCATION NOT OTHERWISE SPECIFIED
ORIFICE DIAMETER0.0099 INCHES MINIMUM AND 0.0105 INCHES MAXIMUM IN
OUTSIDE DIAMETER0.440 INCHES NOMINAL IN
SPECIAL FEATURESHAS 0.0102 INCH ORFICE, 1/8 INCH HOSE AND PIPE ENDS IN
THREAD DIRECTIONRIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
THREAD PROVISIONTHREADED LOCATION NOT OTHERWISE SPECIFIED
THREAD SIZE DESIGNATOR1/8 IN LOCATION NOT OTHERWISE SPECIFIED IN
END ITEM IDENTIFICATION4920NCE399565
NSN4730-01-486-9400
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3308631 · MISSION SYSTEMS DAVENPORT INC. ⚠ 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
•
LENGTH: 0.880 INCHES NOMINAL IN
•
THREAD PROVISION: THREADED LOCATION NOT OTHERWISE SPECIFIED
•
DESIGN TYPE: TUBULAR, HEX SHAPE
•
THREAD SERIES: NPTF LOCATION NOT OTHERWISE SPECIFIED
•
THREAD LENGTH: 0.400 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
HOSE/TUBE SIZE FOR WHICH DESIGNED: 1/8 IN ID HOSE IN
•
OUTSIDE DIAMETER: 0.440 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
TECHNICAL CHARACTERISTICS
LENGTH0.880 INCHES NOMINAL IN
THREAD PROVISIONTHREADED LOCATION NOT OTHERWISE SPECIFIED
DESIGN TYPETUBULAR, HEX SHAPE
THREAD SERIESNPTF LOCATION NOT OTHERWISE SPECIFIED
THREAD LENGTH0.400 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
HOSE/TUBE SIZE FOR WHICH DESIGNED1/8 IN ID HOSE IN
OUTSIDE DIAMETER0.440 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
THREAD SIZE DESIGNATOR1/8 IN LOCATION NOT OTHERWISE SPECIFIED IN
SPECIAL FEATURESHAS 0.0102 INCH ORFICE, 1/8 INCH HOSE AND PIPE ENDS 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
3308631-1Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
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 3308631?
3308631 is a RESTRICTOR,FLUID FLOW manufactured by MISSION SYSTEMS DAVENPORT INC..
What parts can replace 3308631?
There is 1 known substitute for 3308631: 3308631-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 3308631?
3308631 is cataloged in the U.S. Government catalog under NSN 4730-01-486-9400. 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.