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801377-1 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

801377-1: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include special_features: WASHER, SPUR, 305 SST,NO.0, 11-1-4179-2/4, style_designator: CLINCH PLATE, end_item_identification: RA-1 PARACHUTE SYSTEM, part_name_assigned_by_controlling_agency: WASHER,SPUR305 SST 0. This part is cataloged in the U.S.

Government catalog under NSN 4810-00-144-6696, 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
801377-1
NSN: 4810-00-144-6696
NIINs: 001446696, 016650544
FSC: 4810 — Valves, Powered
CAGE: 70210 — HONEYWELL INTERNATIONAL INC. DIV AEROSPACE - TORRANCE (USA)
SPECIFICATIONS
special_featuresWASHER, SPUR, 305 SST,NO.0, 11-1-4179-2/4
style_designatorCLINCH PLATE
end_item_identificationRA-1 PARACHUTE SYSTEM
part_name_assigned_by_controlling_agencyWASHER,SPUR305 SST 0
NSN4810-00-144-6696
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 801377-1 · 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
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FLANGE SEAT TO DISK END HEIGHT: 0.080 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
•
FLANGE DIAMETER: 0.370 INCHES MINIMUM AND 0.372 INCHES MAXIMUM IN
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FSC APPLICATION DATA: TURBO FAN,HEAT EXCHANGER
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BODY OUTSIDE DIAMETER: 0.255 INCHES MINIMUM AND 0.257 INCHES MAXIMUM IN
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STYLE DESIGNATOR: PLAIN FLANGED
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MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-764 TYPE 303 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
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BODY INSIDE DIAMETER: 0.170 INCHES MINIMUM AND 0.174 INCHES MAXIMUM IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT0.080 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
FLANGE DIAMETER0.370 INCHES MINIMUM AND 0.372 INCHES MAXIMUM IN
FSC APPLICATION DATATURBO FAN,HEAT EXCHANGER
BODY OUTSIDE DIAMETER0.255 INCHES MINIMUM AND 0.257 INCHES MAXIMUM IN
STYLE DESIGNATORPLAIN FLANGED
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-764 TYPE 303 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
BODY INSIDE DIAMETER0.170 INCHES MINIMUM AND 0.174 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE OVERALL
UNDER FLANGE HEIGHT0.100 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 801377-1?
801377-1 is a SEAT,VALVE.
What is the NSN for 801377-1?
801377-1 is cataloged in the U.S. Government catalog under NSN 4810-00-144-6696. 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.