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2551-8-69 — CIRCUIT CARD ASSEMBLY

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

2551-8-69: CIRCUIT CARD ASSEMBLY.

The CIRCUIT CARD ASSEMBLY is a the manufacturer industrial component. Key specifications include material: STEEL AND COBALT FACE, flange_diameter: 0.500 INCHES NOMINAL IN, style_designator: PLAIN FLANGED, under_flange_height: 0.218 INCHES MINIMUM AND 0.229 INCHES MAXIMUM IN, body_inside_diameter: 0.250 INCHES MINIMUM AND 0.257 INCHES MAXIMUM IN, body_outside_diameter: 0.351 INCHES MINIMUM AND 0.354 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-049-3383, 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
2551-8-69
NSN: 4820-01-049-3383
FSC: 4820 — Valves, Nonpowered
CAGE: 57574 — VELAN VALVE CORP. (USA)
SPECIFICATIONS
materialSTEEL AND COBALT FACE
flange_diameter0.500 INCHES NOMINAL IN
style_designatorPLAIN FLANGED
under_flange_height0.218 INCHES MINIMUM AND 0.229 INCHES MAXIMUM IN
body_inside_diameter0.250 INCHES MINIMUM AND 0.257 INCHES MAXIMUM IN
body_outside_diameter0.351 INCHES MINIMUM AND 0.354 INCHES MAXIMUM IN
seating_surface_shapeFLAT
flange_seat_to_disk_end_height0.328 INCHES MINIMUM AND 0.329 INCHES MAXIMUM IN
material_document_and_classificationCOMP STELLITE NO. 5 ASSN STD SINGLE MATERIAL RESPONSE FACE
NSN4820-01-049-3383
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 2551-8-69 · 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: 0.328 INCHES MINIMUM AND 0.329 INCHES MAXIMUM IN
•
FLANGE DIAMETER: 0.500 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 0.351 INCHES MINIMUM AND 0.354 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: PLAIN FLANGED
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM-A276 ASSN STD 1ST MATERIAL RESPONSE OR ASTM-A479 ASSN STD 1ST MATERIAL RESPONSE BODY
•
BODY INSIDE DIAMETER: 0.250 INCHES MINIMUM AND 0.257 INCHES MAXIMUM IN
•
UNDER FLANGE HEIGHT: 0.218 INCHES MINIMUM AND 0.229 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT0.328 INCHES MINIMUM AND 0.329 INCHES MAXIMUM IN
FLANGE DIAMETER0.500 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER0.351 INCHES MINIMUM AND 0.354 INCHES MAXIMUM IN
STYLE DESIGNATORPLAIN FLANGED
MATERIAL DOCUMENT AND CLASSIFICATIONASTM-A276 ASSN STD 1ST MATERIAL RESPONSE OR ASTM-A479 ASSN STD 1ST MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATIONCOMP STELLITE NO. 5 ASSN STD SINGLE MATERIAL RESPONSE FACE
BODY INSIDE DIAMETER0.250 INCHES MINIMUM AND 0.257 INCHES MAXIMUM IN
UNDER FLANGE HEIGHT0.218 INCHES MINIMUM AND 0.229 INCHES MAXIMUM IN
MATERIALSTEEL COMP 410 BODY
MATERIALSTEEL AND COBALT FACE
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 2
23399Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
23399PIECE5 3/8Same 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 2551-8-69?
2551-8-69 is a CIRCUIT CARD ASSEMBLY.
What parts can replace 2551-8-69?
There are 2 known substitutes for 2551-8-69: 23399, 23399PIECE5 3/8. Substitute compatibility should be verified for your specific system.
What is the NSN for 2551-8-69?
2551-8-69 is cataloged in the U.S. Government catalog under NSN 4820-01-049-3383. This indicates validated use in U.S. government and defense supply chains.
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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.