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1003998 — FITTING,LUBRICATION

✓ Government record, cited
3M · HOSE FITTING
PRODUCT OVERVIEW

1003998: FITTING,LUBRICATION.

The FITTING,LUBRICATION is a 3M industrial component. Key specifications include height: 0.620 INCHES NOMINAL IN, material: STEEL BODY, shank_length: 0.240 INCHES NOMINAL IN, special_features: USED ON POWER UNIT, FRONT 12 1/2 TON 4X4 MK48 MOD D LVS, style_designator: THREADED, nominal_thread_size: 0.250 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-489-6104, 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
1003998
NSN: 4730-00-489-6104
NIINs: 004896104, 011556743
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 05073 — BABCOCK & WILCOX CO (USA)
SPECIFICATIONS
height0.620 INCHES NOMINAL IN
materialSTEEL BODY
shank_length0.240 INCHES NOMINAL IN
special_featuresUSED ON POWER UNIT, FRONT 12 1/2 TON 4X4 MK48 MOD D LVS
style_designatorTHREADED
nominal_thread_size0.250 INCHES IN
screw_thread_series_designatorNPT
NSN4730-00-489-6104
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1003998 · 3M ⚠ 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
•
HEAD TYPE: SOLID
•
NOMINAL PIPE SIZE FOR WHICH DESIGNED: 1.000 INCHES IN
•
CONNECTION STYLE: PLAIN (OPTIONAL END)PLAIN (OPTIONAL END)
•
STYLE DESIGNATOR: CAPCAP
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
HEAD TYPESOLID
NOMINAL PIPE SIZE FOR WHICH DESIGNED1.000 INCHES IN
CONNECTION STYLEPLAIN (OPTIONAL END)PLAIN (OPTIONAL END)
STYLE DESIGNATORCAPCAP
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 7
104635DPC23Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
51397BPC23Reference document
Same NSN cross-reference
Reference document — Secondary reference
7820464Reference document
Same NSN cross-reference
Reference document — Secondary reference
201942D PC 23Reference document
Same NSN cross-reference
Reference document — Secondary reference
104635D PIECE 2Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
51397BReference 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 1003998?
1003998 is a FITTING,LUBRICATION manufactured by 3M.
What parts can replace 1003998?
There are 7 known substitutes for 1003998: 104635DPC23, 51397BPC23, 7820464 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1003998?
1003998 is cataloged in the U.S. Government catalog under NSN 4730-00-489-6104. This indicates validated use in U.S. government and defense supply chains.
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