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7840-108PC40 — RETAINER,DISK,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

7840-108PC40: RETAINER,DISK,VALVE.

The RETAINER,DISK,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, end_item_identification: 4820-01-625-1633, valve_design_control_activity: 57574, valve_size_for_which_designed: 2.50 INCHES IN, material_document_and_classification: ASTM A479 TYPE 304 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A479 TYPE 316 ASSN STD 2ND MATERIAL RESPONSE, part_name_assigned_by_controlling_agency: DISC UNION. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-625-1649, 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
7840-108PC40
NSN: 4820-01-625-1649
FSC: 4820 — Valves, Nonpowered
CAGE: 57574 — VELAN VALVE CORP. (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
end_item_identification4820-01-625-1633
valve_design_control_activity57574
valve_size_for_which_designed2.50 INCHES IN
material_document_and_classificationASTM A479 TYPE 304 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A479 TYPE 316 ASSN STD 2ND MATERIAL RESPONSE
part_name_assigned_by_controlling_agencyDISC UNION
NSN4820-01-625-1649
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 7840-108PC40 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A479 TYPE 304 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A479 TYPE 316 ASSN STD 2ND MATERIAL RESPONSE
•
VALVE SIZE FOR WHICH DESIGNED: 2.50 INCHES IN
•
VALVE DESIGN CONTROL ACTIVITY: 57574
•
MATERIAL: STEEL CORROSION RESISTING
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A479 TYPE 304 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A479 TYPE 316 ASSN STD 2ND MATERIAL RESPONSE
VALVE SIZE FOR WHICH DESIGNED2.50 INCHES IN
PART NAME ASSIGNED BY CONTROLLING AGENCYDISC UNION
VALVE DESIGN CONTROL ACTIVITY57574
END ITEM IDENTIFICATION4820-01-625-1633
MATERIALSTEEL CORROSION RESISTING
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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7840-108PC40?
7840-108PC40 is a RETAINER,DISK,VALVE.
What is the NSN for 7840-108PC40?
7840-108PC40 is cataloged in the U.S. Government catalog under NSN 4820-01-625-1649. 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.