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3128A — RECEIVER-TRANSMITTER-TEST SET GR

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

3128A: RECEIVER-TRANSMITTER-TEST SET GR.

RECEIVER-TRANSMITTER-TEST SET GR. Key specifications include end_item_identification: DMR, part_name_assigned_by_controlling_agency: TEST SET,RADIO FREQ. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-183-0825, 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
MRO→ MRO_GENERAL→ 3128A
NSN: 4820-00-183-0825
NIINs: 001830825, 010578463, 016454488
FSC: 4820 — Valves, Nonpowered
CAGE: 31039 — NATIONAL SCREW PRODUCTS CO INC (USA)
SPECIFICATIONS
end_item_identificationDMR
part_name_assigned_by_controlling_agencyTEST SET,RADIO FREQ
NSN4820-00-183-0825
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 3128A · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONM109 HOWITZER FAMILY
SUBSTITUTES & CROSS-REFERENCES 1
11640333Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Demilitarization required — mutilation + specific procedure
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FREQUENTLY ASKED QUESTIONS
What is 3128A?
3128A is a RECEIVER-TRANSMITTER-TEST SET GR. It is classified as a MRO (MRO_GENERAL).
What parts can replace 3128A?
There is 1 known substitute for 3128A: 11640333. Substitute compatibility should be verified for your specific system.
What is the NSN for 3128A?
3128A is cataloged in the U.S. Government catalog under NSN 4820-00-183-0825. 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.