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1670499 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

1670499: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, overall_height: 0.245 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN, style_designator: PLAIN, seat_angle_in_deg: 0.750 NOMINAL, body_inside_diameter: 1.369 INCHES MINIMUM AND 1.379 INCHES MAXIMUM IN, body_outside_diameter: 1.639 INCHES MINIMUM AND 1.640 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-659-9986, 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
1670499
NSN: 4820-00-659-9986
FSC: 4820 — Valves, Nonpowered
CAGE: 12204 — CHRYSLER REALTY COMPANY LLC DBA DAIMLER CHRYSLER (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_height0.245 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
style_designatorPLAIN
seat_angle_in_deg0.750 NOMINAL
body_inside_diameter1.369 INCHES MINIMUM AND 1.379 INCHES MAXIMUM IN
body_outside_diameter1.639 INCHES MINIMUM AND 1.640 INCHES MAXIMUM IN
seating_surface_shapeANGULAR
NSN4820-00-659-9986
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1670499 · 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
•
BODY OUTSIDE DIAMETER: 1.639 INCHES MINIMUM AND 1.640 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: PLAIN
•
BODY INSIDE DIAMETER: 1.369 INCHES MINIMUM AND 1.379 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
•
SEAT ANGLE IN DEG: 0.750 NOMINAL
•
SEATING SURFACE SHAPE: ANGULAR
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.245 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER1.639 INCHES MINIMUM AND 1.640 INCHES MAXIMUM IN
STYLE DESIGNATORPLAIN
BODY INSIDE DIAMETER1.369 INCHES MINIMUM AND 1.379 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
SEAT ANGLE IN DEG0.750 NOMINAL
SEATING SURFACE SHAPEANGULAR
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1670499?
1670499 is a SEAT,VALVE.
What is the NSN for 1670499?
1670499 is cataloged in the U.S. Government catalog under NSN 4820-00-659-9986. 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.