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98948-1 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

98948-1: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include flange_diameter: 0.495 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN, special_features: 0.124 IN. MIN,0.128 IN.

MAX DIA THROUGH HOLE IN BODY IN, under_flange_height: 0.480 INCHES NOMINAL IN, body_inside_diameter: 0.200 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN, body_outside_diameter: 0.410 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN, seal_accommodation_type: GROOVED. This part is cataloged in the U.S. Government catalog under NSN 4820-00-601-1071, 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
98948-1
NSN: 4820-00-601-1071
FSC: 4820 — Valves, Nonpowered
CAGE: 59364 — HONEYWELL INTERNATIONAL INC. DBA HONEYWELL INTERNATIONAL DIV AEROSPACE - TEMPE (WEST WARNER ROAD) (USA)
SPECIFICATIONS
flange_diameter0.495 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN
special_features0.124 IN. MIN,0.128 IN. MAX DIA THROUGH HOLE IN BODY IN
under_flange_height0.480 INCHES NOMINAL IN
body_inside_diameter0.200 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN
body_outside_diameter0.410 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
seal_accommodation_typeGROOVED
flange_seat_to_disk_end_height0.165 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN
NSN4820-00-601-1071
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 98948-1 · 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
•
FLANGE SEAT TO DISK END HEIGHT: 0.165 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN
•
FLANGE DIAMETER: 0.495 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN
•
BODY OUTSIDE DIAMETER: 0.410 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
•
SEAL ACCOMMODATION TYPE: GROOVED
•
BODY INSIDE DIAMETER: 0.200 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN
•
UNDER FLANGE HEIGHT: 0.480 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT0.165 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN
FLANGE DIAMETER0.495 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER0.410 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
SEAL ACCOMMODATION TYPEGROOVED
BODY INSIDE DIAMETER0.200 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN
SPECIAL FEATURES0.124 IN. MIN,0.128 IN. MAX DIA THROUGH HOLE IN BODY IN
UNDER FLANGE HEIGHT0.480 INCHES NOMINAL IN
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
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 98948-1?
98948-1 is a SEAT,VALVE.
What is the NSN for 98948-1?
98948-1 is cataloged in the U.S. Government catalog under NSN 4820-00-601-1071. 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.