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8-00401 — BASE,ANTENNA SUPPORT

✓ Government record, cited
Legrand · GATE VALVE
PRODUCT OVERVIEW

8-00401: BASE,ANTENNA SUPPORT.

The BASE,ANTENNA SUPPORT is a Legrand industrial component. Key specifications include material: STEEL, thread_class: 2B, core_diameter: 0.054 INCHES NOMINAL IN, core_material: STEEL, thread_length: 0.150 INCHES NOMINAL IN, thread_series: UNEF. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-631-9823, 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
8-00401
NSN: 4820-00-631-9823
NIINs: 006319823, 007086545, 007375116, 010075198, 015051655, 016194005
FSC: 4820 — Valves, Nonpowered
CAGE: 14170 — HUGHES MISSILE SYSTEMS CO SAN DIEGO (USA)
SPECIFICATIONS
materialSTEEL
thread_class2B
core_diameter0.054 INCHES NOMINAL IN
core_materialSTEEL
thread_length0.150 INCHES NOMINAL IN
thread_seriesUNEF
overall_length0.359 INCHES MAXIMUM IN
mounting_methodINTERNAL THREAD
thread_diameter0.312 INCHES IN
thread_quantity32 PER INCH
effective_length20.375 INCHES MINIMUM AND 20.625 INCHES MAXIMUM IN
overall_diameter0.375 INCHES MINIMUM AND 0.387 INCHES MAXIMUM IN
NSN4820-00-631-9823
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 8-00401 · Legrand ⚠ 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
SPECIAL FEATURES3000 PSI OPERATING PRESSURE;4500 PSI PROOF,AND 7500 PSI BURST PRESSURES;OPERATING TEMP RANGE M65 TO 170 DEG F;MANUALLY OPERATED;2-WAY POSITION DEGF
END ITEM IDENTIFICATIONFIGHTER PLANE MODEL F106A,GENERAL DYNAMICS CORP
SUBSTITUTES & CROSS-REFERENCES 2
8-00401-3Reference document
Same NSN cross-reference
Reference document — Secondary reference
871823Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedDemilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 8-00401?
8-00401 is a BASE,ANTENNA SUPPORT manufactured by Legrand.
What parts can replace 8-00401?
There are 2 known substitutes for 8-00401: 8-00401-3, 871823. Substitute compatibility should be verified for your specific system.
What is the NSN for 8-00401?
8-00401 is cataloged in the U.S. Government catalog under NSN 4820-00-631-9823. 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.