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3-74045 — FLANGE,PIPE,SWIVEL RETAINING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

3-74045: FLANGE,PIPE,SWIVEL RETAINING.

The FLANGE,PIPE,SWIVEL RETAINING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, thickness: 1.190 INCHES NOMINAL IN, flange_diameter: 10.125 INCHES NOMINAL IN, style_designator: ROUND, ONE BOLT HOLE CIRCLE, bolt_hole_diameter: 0.690 INCHES NOMINAL IN, bolt_circle_diameter: 8.880 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-903-8639, 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
3-74045
NSN: 4730-00-903-8639
NIINs: 009038639, 009038641, 013039255, 013046166
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 01276 — DANFOSS POWER SOLUTIONS II, LLC (USA)
SPECIFICATIONS
materialCOPPER ALLOY
thickness1.190 INCHES NOMINAL IN
flange_diameter10.125 INCHES NOMINAL IN
style_designatorROUND, ONE BOLT HOLE CIRCLE
bolt_hole_diameter0.690 INCHES NOMINAL IN
bolt_hole_quantity8
bolt_circle_diameter8.880 INCHES NOMINAL IN
flange_section_stylePLAIN FACE
face_seating_surface_conditionMACHINED
material_document_and_classificationQQ-C-390,ALLOY D5 FED SPEC SINGLE MATERIAL RESPONSE
nominal_pipe_size_for_which_designed6.000 INCHES IN
NSN4730-00-903-8639
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3-74045 · 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
•
FLANGE DIAMETER: 6.620 INCHES NOMINAL IN
•
FACE SEATING SURFACE CONDITION: MACHINED
•
NOMINAL PIPE SIZE FOR WHICH DESIGNED: 3.000 INCHES IN
•
FLANGE SECTION STYLE: PLAIN FACE
•
STYLE DESIGNATOR: ROUND, ONE BOLT HOLE CIRCLE
•
BOLT HOLE DIAMETER: 0.560 INCHES NOMINAL IN
•
SPECIFICATION/STANDARD DATA: 81349-MIL-F-20042 GOVERNMENT SPECIFICATION
•
NONDEFINITIVE SPEC/STD DATA: EF TYPE
TECHNICAL CHARACTERISTICS
FLANGE DIAMETER6.620 INCHES NOMINAL IN
FACE SEATING SURFACE CONDITIONMACHINED
NOMINAL PIPE SIZE FOR WHICH DESIGNED3.000 INCHES IN
FLANGE SECTION STYLEPLAIN FACE
STYLE DESIGNATORROUND, ONE BOLT HOLE CIRCLE
BOLT HOLE DIAMETER0.560 INCHES NOMINAL IN
SPECIFICATION/STANDARD DATA81349-MIL-F-20042 GOVERNMENT SPECIFICATION
NONDEFINITIVE SPEC/STD DATAEF TYPE
BOLT HOLE QUANTITY8
BOLT CIRCLE DIAMETER5.500 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 3
188-74045-3-48Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
MIL-F-20042Reference document
Same NSN cross-reference
Reference document — Identification reference
3-74045-3-48Reference document
Same NSN cross-reference
Reference document — Secondary 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 3-74045?
3-74045 is a FLANGE,PIPE,SWIVEL RETAINING.
What parts can replace 3-74045?
There are 3 known substitutes for 3-74045: 188-74045-3-48, MIL-F-20042, 3-74045-3-48. Substitute compatibility should be verified for your specific system.
What is the NSN for 3-74045?
3-74045 is cataloged in the U.S. Government catalog under NSN 4730-00-903-8639. 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.