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21240-1 — SUPPORT,RADIO RECEIVER

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

21240-1: SUPPORT,RADIO RECEIVER.

The SUPPORT,RADIO RECEIVER is a the manufacturer industrial component. Key specifications include end_item_identification: 524919-03(29355), WORKSTATION. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-873-0656, 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→ 21240-1
NSN: 4820-00-873-0656
NIINs: 008730656, 013867200, 016687506
FSC: 4820 — Valves, Nonpowered
CAGE: 99657 — MAROTTA CONTROLS INC (USA)
SPECIFICATIONS
end_item_identification524919-03(29355), WORKSTATION
NSN4820-00-873-0656
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 21240-1 · 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
KEY FEATURES
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONAMMONIA MOBILE SERVICING UNIT
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
9194770-22Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 21240-1?
21240-1 is a SUPPORT,RADIO RECEIVER. It is classified as a MRO (MRO_GENERAL).
What parts can replace 21240-1?
There is 1 known substitute for 21240-1: 9194770-22. Substitute compatibility should be verified for your specific system.
What is the NSN for 21240-1?
21240-1 is cataloged in the U.S. Government catalog under NSN 4820-00-873-0656. 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.