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39740G — CUP,TAPERED ROLLER BEARING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

39740G: CUP,TAPERED ROLLER BEARING.

The CUP,TAPERED ROLLER BEARING is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include material: ALUMINUM ALLOY 6061 OVERALL, recess_angle: 90.0 DEGREES NOMINAL, recess_diameter: 0.228 INCHES MINIMUM AND 0.232 INCHES MAXIMUM IN, outside_diameter: 0.344 INCHES NOMINAL IN, style_designator: RECESSED, surface_treatment: CHROMATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-537-9491, 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
39740G
NSN: 4730-00-537-9491
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 86184 — GRISWOLD INDUSTRIES DBA CLA-VAL CO (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061 OVERALL
recess_angle90.0 DEGREES NOMINAL
recess_diameter0.228 INCHES MINIMUM AND 0.232 INCHES MAXIMUM IN
outside_diameter0.344 INCHES NOMINAL IN
style_designatorRECESSED
surface_treatmentCHROMATE OVERALL
material_thickness0.071 INCHES NOMINAL IN
material_document_and_classificationQQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
part_name_assigned_by_controlling_agencyNOZZLE,FIRE HOSE
surface_treatment_document_and_classificationMIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN4730-00-537-9491
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 39740G · 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
TYPICAL APPLICATIONS
  • Long-term data archival and compliance retention
  • Offsite backup and disaster recovery
  • Air-gapped ransomware protection
  • Cold storage tier for infrequently accessed data
SUBSTITUTES & CROSS-REFERENCES 5
X58B 44963Reference document
Same NSN cross-reference
Reference document — Secondary reference
98281-04Reference document
Same NSN cross-reference
Reference document — Secondary reference
48833Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
39740Reference document
Same NSN cross-reference
Reference document — Secondary reference
44963Reference 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 39740G?
39740G is a CUP,TAPERED ROLLER BEARING.
What parts can replace 39740G?
There are 5 known substitutes for 39740G: X58B 44963, 98281-04, 48833 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 39740G?
39740G is cataloged in the U.S. Government catalog under NSN 4730-00-537-9491. 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.