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15-04400 — SEAT,VALVE

✓ Government record, cited
3M · GATE VALVE
PRODUCT OVERVIEW

15-04400: SEAT,VALVE.

The SEAT,VALVE is a 3M industrial component. Key specifications include special_features: METRIC, end_item_identification: LUGGER PROPULSION ENGINE L844D, part_name_assigned_by_controlling_agency: M5 LOCK WASHER. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-388-1404, 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
15-04400
NSN: 4820-00-388-1404
NIINs: 003881404, 015674235
FSC: 4820 — Valves, Nonpowered
CAGE: 90099 — NORTHROP GRUMMAN SYSTEMS CORPORATION DIV MARINE SYSTEMS (USA)
SPECIFICATIONS
special_featuresMETRIC
end_item_identificationLUGGER PROPULSION ENGINE L844D
part_name_assigned_by_controlling_agencyM5 LOCK WASHER
NSN4820-00-388-1404
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 15-04400 · 3M ⚠ 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
•
BODY OUTSIDE DIAMETER: 1.747 INCHES MINIMUM AND 1.748 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: PLAIN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-853,CLASS 3,TYPE A MIL SPEC SINGLE MATERIAL RESPONSE BODY
•
MATERIAL: STEEL BODY
•
SEATING SURFACE SHAPE: FLAT
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT2.438 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER1.747 INCHES MINIMUM AND 1.748 INCHES MAXIMUM IN
STYLE DESIGNATORPLAIN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-853,CLASS 3,TYPE A MIL SPEC SINGLE MATERIAL RESPONSE BODY
MATERIALSTEEL BODY
SEATING SURFACE SHAPEFLAT
SUBSTITUTES & CROSS-REFERENCES 2
95J563PC51Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
95J537PC32Same 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 15-04400?
15-04400 is a SEAT,VALVE manufactured by 3M.
What parts can replace 15-04400?
There are 2 known substitutes for 15-04400: 95J563PC51, 95J537PC32. Substitute compatibility should be verified for your specific system.
What is the NSN for 15-04400?
15-04400 is cataloged in the U.S. Government catalog under NSN 4820-00-388-1404. 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.