PartsTable
Technical Data Sheet
Download PDF

5078K56 — REDUCER BODY,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

5078K56: REDUCER BODY,TUBE.

The REDUCER BODY,TUBE is a the manufacturer industrial component. Key specifications include material: STEEL, overall_length: 9.750 INCHES MINIMUM IN, thread_direction: RIGHT-HAND, supplementary_features: REDUCES FROM 4 INCHES TO 3 INCHES; MATERIAL IS 24 GA. IN, flange_outside_diameter: 4.000 INCHES MINIMUM IN, part_name_assigned_by_controlling_agency: GALVANIZED STEEL SPIRAL DUCT FITTING/REDUCER.

This part is cataloged in the U.S. Government catalog under NSN 4730-01-595-8822, 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
5078K56
NSN: 4730-01-595-8822
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 3A054 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL
overall_length9.750 INCHES MINIMUM IN
thread_directionRIGHT-HAND
supplementary_featuresREDUCES FROM 4 INCHES TO 3 INCHES; MATERIAL IS 24 GA. IN
flange_outside_diameter4.000 INCHES MINIMUM IN
part_name_assigned_by_controlling_agencyGALVANIZED STEEL SPIRAL DUCT FITTING/REDUCER
NSN4730-01-595-8822
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 5078K56 · 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
•
SUPPLEMENTARY FEATURES: REDUCES FROM 4 INCHES TO 3 INCHES; MATERIAL IS 24 GA. IN
•
THREAD DIRECTION: RIGHT-HAND
•
MATERIAL: STEEL
•
FLANGE OUTSIDE DIAMETER: 4.000 INCHES MINIMUM IN
TECHNICAL CHARACTERISTICS
SUPPLEMENTARY FEATURESREDUCES FROM 4 INCHES TO 3 INCHES; MATERIAL IS 24 GA. IN
OVERALL LENGTH9.750 INCHES MINIMUM IN
THREAD DIRECTIONRIGHT-HAND
PART NAME ASSIGNED BY CONTROLLING AGENCYGALVANIZED STEEL SPIRAL DUCT FITTING/REDUCER
MATERIALSTEEL
FLANGE OUTSIDE DIAMETER4.000 INCHES MINIMUM 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 5078K56?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 5078K56?
5078K56 is a REDUCER BODY,TUBE.
What is the NSN for 5078K56?
5078K56 is cataloged in the U.S. Government catalog under NSN 4730-01-595-8822. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 5078K56

✓ 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.