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2BD321 — INSERT,TUBE FITTING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

2BD321: INSERT,TUBE FITTING.

The INSERT,TUBE FITTING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, special_features: 1.250 IN.O/A LG IN, style_designator: PLAIN, casehardening_indicator: NOT CASEHARDENED, end_item_identification: HEMTT FAMILY (HEAVY EXPANDED MOBILITY TACTICAL TRUCKS), flange_outside_diameter: 0.797 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-164-7976, 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
2BD321
NSN: 4730-01-164-7976
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialCOPPER ALLOY
special_features1.250 IN.O/A LG IN
style_designatorPLAIN
casehardening_indicatorNOT CASEHARDENED
end_item_identificationHEMTT FAMILY (HEAVY EXPANDED MOBILITY TACTICAL TRUCKS)
flange_outside_diameter0.797 INCHES NOMINAL IN
sleeve_outside_diameter0.750 INCHES NOMINAL IN
tube_inside_diameter_for_which_designed0.719 INCHES NOMINAL IN
NSN4730-01-164-7976
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 2BD321 · 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
•
STYLE DESIGNATOR: PLAIN
•
SLEEVE OUTSIDE DIAMETER: 0.750 INCHES NOMINAL IN
•
TUBE INSIDE DIAMETER FOR WHICH DESIGNED: 0.719 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
MATERIAL: COPPER ALLOY
•
FLANGE OUTSIDE DIAMETER: 0.797 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORPLAIN
SLEEVE OUTSIDE DIAMETER0.750 INCHES NOMINAL IN
TUBE INSIDE DIAMETER FOR WHICH DESIGNED0.719 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
SPECIAL FEATURES1.250 IN.O/A LG IN
END ITEM IDENTIFICATIONHEMTT FAMILY (HEAVY EXPANDED MOBILITY TACTICAL TRUCKS)
MATERIALCOPPER ALLOY
FLANGE OUTSIDE DIAMETER0.797 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
45A198-P4Reference document
Same NSN cross-reference
Reference document — Secondary reference
45A198Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2BD321?
2BD321 is a INSERT,TUBE FITTING.
What parts can replace 2BD321?
There are 2 known substitutes for 2BD321: 45A198-P4, 45A198. Substitute compatibility should be verified for your specific system.
What is the NSN for 2BD321?
2BD321 is cataloged in the U.S. Government catalog under NSN 4730-01-164-7976. 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.