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103870 — REGULATOR,VOLTAGE

✓ Government record, cited
Hama · HOSE FITTING
PRODUCT OVERVIEW

103870: REGULATOR,VOLTAGE.

The REGULATOR,VOLTAGE is a Hama industrial component. Key specifications include material: IRON OVERALL, body_type: CORED, head_type: CORED, drive_end_style: RAISED SQUARE, connection_style: PLAIN, thread_direction: RIGHT-HAND EXTERNAL. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-443-8376, 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
103870
NSN: 4730-00-443-8376
NIINs: 004438376, 009190225, 013533287, 016620174
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 92679 — NAVISTAR INTL CORP MELROSE PARK ENGINE PLANT LOCATION /MELROSE PARK/ (USA)
SPECIFICATIONS
materialIRON OVERALL
body_typeCORED
head_typeCORED
drive_end_styleRAISED SQUARE
connection_stylePLAIN
thread_directionRIGHT-HAND EXTERNAL
nominal_thread_size1.000 INCHES EXTERNAL IN
end_item_identificationPACER SPECIAL
thread_series_designatorNPTF EXTERNAL
nominal_pipe_size_for_which_designed1.000 INCHES IN
NSN4730-00-443-8376
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 103870 · Hama ⚠ 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: CORED
•
NOMINAL PIPE SIZE FOR WHICH DESIGNED: 1.000 INCHES IN
•
CONNECTION STYLE: PLAIN
•
DRIVE END STYLE: RAISED SQUARE
•
THREAD DIRECTION: RIGHT-HAND EXTERNAL
•
NOMINAL THREAD SIZE: 1.000 INCHES EXTERNAL IN
•
BODY TYPE: CORED
TECHNICAL CHARACTERISTICS
HEAD TYPECORED
NOMINAL PIPE SIZE FOR WHICH DESIGNED1.000 INCHES IN
CONNECTION STYLEPLAIN
DRIVE END STYLERAISED SQUARE
THREAD DIRECTIONRIGHT-HAND EXTERNAL
NOMINAL THREAD SIZE1.000 INCHES EXTERNAL IN
BODY TYPECORED
END ITEM IDENTIFICATIONHARNISCHFEGER CORP.;MODEL M320T2 CRANE TRUCK MOUNTED,NSN 3810-00-151-4431; LOGISTICS SUPPORT VESSEL
MATERIALIRON OVERALL
THREAD SERIES DESIGNATORNPTF EXTERNAL
SUBSTITUTES & CROSS-REFERENCES 2
444598Reference document
Same NSN cross-reference
Reference document — Secondary reference
90319Reference 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 103870?
103870 is a REGULATOR,VOLTAGE manufactured by Hama.
What parts can replace 103870?
There are 2 known substitutes for 103870: 444598, 90319. Substitute compatibility should be verified for your specific system.
What is the NSN for 103870?
103870 is cataloged in the U.S. Government catalog under NSN 4730-00-443-8376. 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.