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3901797 — REDUCER BODY,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

3901797: REDUCER BODY,TUBE.

The REDUCER BODY,TUBE is a the manufacturer industrial component. Key specifications include material: STEEL, thread_size: 3/8-18, overall_length: 2.520 INCHES NOMINAL IN, special_features: THREE HOLES IN BODY 1/8-27 NPSI;MTG BRACKET BRAZED TO BODY, first_end_seat_angle_in_deg: 10.0, second_end_seat_angle_in_deg: 45.0. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-460-1655, 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
3901797
NSN: 4730-00-460-1655
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 7X677 — GENERAL MOTORS LLC DBA GENERAL MOTORS LLC (USA)
SPECIFICATIONS
materialSTEEL
thread_size3/8-18
overall_length2.520 INCHES NOMINAL IN
special_featuresTHREE HOLES IN BODY 1/8-27 NPSI;MTG BRACKET BRAZED TO BODY
first_end_seat_angle_in_deg10.0
second_end_seat_angle_in_deg45.0
screw_thread_series_designatorNPSF
NSN4730-00-460-1655
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3901797 · 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
•
SECOND END SEAT ANGLE IN DEG: 45.0
•
FIRST END SEAT ANGLE IN DEG: 10.0
•
THREAD SIZE: 3/8-18
•
SCREW THREAD SERIES DESIGNATOR: NPSF
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
SECOND END SEAT ANGLE IN DEG45.0
FIRST END SEAT ANGLE IN DEG10.0
OVERALL LENGTH2.520 INCHES NOMINAL IN
THREAD SIZE3/8-18
SPECIAL FEATURESTHREE HOLES IN BODY 1/8-27 NPSI;MTG BRACKET BRAZED TO BODY
SCREW THREAD SERIES DESIGNATORNPSF
MATERIALSTEEL
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

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 3901797?
3901797 is a REDUCER BODY,TUBE.
What is the NSN for 3901797?
3901797 is cataloged in the U.S. Government catalog under NSN 4730-00-460-1655. 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.