PartsTable
Technical Data Sheet
Download PDF

H1BLG276D — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

H1BLG276D: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL BODY, overall_height: 0.293 INCHES NOMINAL IN, hardness_rating: 85.0 SHORE DUROMETER A MINIMUM AND 95.0 SHORE DUROMETER A MAXIMUM OVERALL, style_designator: PLAIN, body_inside_diameter: 2.166 INCHES MINIMUM AND 2.174 INCHES MAXIMUM IN, body_outside_diameter: 2.756 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-030-3447, 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
H1BLG276D
NSN: 4820-00-030-3447
FSC: 4820 — Valves, Nonpowered
CAGE: 96311 — DAKOTA FIRE APPARATUS CO INC (USA)
SPECIFICATIONS
materialSTEEL BODY
overall_height0.293 INCHES NOMINAL IN
hardness_rating85.0 SHORE DUROMETER A MINIMUM AND 95.0 SHORE DUROMETER A MAXIMUM OVERALL
style_designatorPLAIN
body_inside_diameter2.166 INCHES MINIMUM AND 2.174 INCHES MAXIMUM IN
body_outside_diameter2.756 INCHES NOMINAL IN
seating_surface_shapeFLAT
NSN4820-00-030-3447
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: H1BLG276D · 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: 2.756 INCHES NOMINAL IN
•
HARDNESS RATING: 85.0 SHORE DUROMETER A MINIMUM AND 95.0 SHORE DUROMETER A MAXIMUM OVERALL
•
STYLE DESIGNATOR: PLAIN
•
BODY INSIDE DIAMETER: 2.166 INCHES MINIMUM AND 2.174 INCHES MAXIMUM IN
•
MATERIAL: STEEL BODY
•
SEATING SURFACE SHAPE: FLAT
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.293 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER2.756 INCHES NOMINAL IN
HARDNESS RATING85.0 SHORE DUROMETER A MINIMUM AND 95.0 SHORE DUROMETER A MAXIMUM OVERALL
STYLE DESIGNATORPLAIN
BODY INSIDE DIAMETER2.166 INCHES MINIMUM AND 2.174 INCHES MAXIMUM IN
MATERIALSTEEL BODY
MATERIALRUBBER SYNTHETIC FACE
SEATING SURFACE SHAPEFLAT
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 1
BLG276DReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy H1BLG276D?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is H1BLG276D?
H1BLG276D is a SEAT,VALVE.
What parts can replace H1BLG276D?
There is 1 known substitute for H1BLG276D: BLG276D. Substitute compatibility should be verified for your specific system.
What is the NSN for H1BLG276D?
H1BLG276D is cataloged in the U.S. Government catalog under NSN 4820-00-030-3447. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — H1BLG276D

✓ 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.