NSN 4820-01-113-2440 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-113-2440. Manufacturer of record part number: P2-47946-G01 ITEM 17.
General Characteristics Item Description: MATERIAL CAST CARBON STEEL;FIRST END 4.500 IN. OD;SECOND END 2.799 IN. OD;1.062 IN. HEIGHT;2.312-8 ACME 2G RH INTERNAL THREADS;TWO MOUNTING HOLES 0.422 IN. DIA DRILLED THRU WITH 0.500-13 UNC 2B INTERNAL THREADS 0.500 IN. DEEP EQUALLY SPACED 180 DEG APART FOR GLAND STUDS;FLANGE FACE FOUR HOLES 0.422 IN. DIA DRILLED THRU 0.500-13 UNC 2B INTERNAL THREADS EQUALLY SPACED ON A 3.438 IN. BOLT CIRCLE DIA G
1 manufacturer part number on file
Manufacturer of record: Velan Valve Corp.
Identification
NSN: 4820-01-113-2440
NIIN: 011132440
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: P2-47946-G01 ITEM 17
Manufacturer: Velan Valve Corp.
General Description
The Bonnet Retainer,valve, cataloged under National Stock Number 4820-01-113-2440, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Velan Valve Corp.. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 10 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-01-113-2440
Primary Part Number
P2-47946-G01 ITEM 17
Item Name
Bonnet Retainer,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Velan Valve Corp.
Status
ACTIVE
General Characteristics Item Description
MATERIAL CAST CARBON STEEL;FIRST END 4.500 IN. OD;SECOND END 2.799 IN. OD;1.062 IN. HEIGHT;2.312-8 ACME 2G RH INTERNAL THREADS;TWO MOUNTING HOLES 0.422 IN. DIA DRILLED THRU WITH 0.500-13 UNC 2B INTERNAL THREADS 0.500 IN. DEEP EQUALLY SPACED 180 DEG APART FOR GLAND STUDS;FLANGE FACE FOUR HOLES 0.422 IN. DIA DRILLED THRU 0.500-13 UNC 2B INTERNAL THREADS EQUALLY SPACED ON A 3.438 IN. BOLT CIRCLE DIA G
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items10
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-246-6420803-2177140 PC 3POSSIBLE MATCH
COLLAR,STEM VALVE
Possible match (shared part number)Naval Ship Systems Command
4820-01-247-2660803-2177140 PC 2APOSSIBLE MATCH
DISK,VALVE
Possible match (shared part number)Naval Ship Systems Command
4820-01-250-0030803-2177140-XX-15POSSIBLE MATCH
GUIDE,VALVE STEM
Possible match (shared part number)Naval Ship Systems Command
3040-01-458-1510POSSIBLE MATCH
PLATE,RETAINING,SHAFT
Possible match (shared part number)
5365-01-474-08030809-020-061POSSIBLE MATCH
RING,RETAINING,INSTRUMENT
Possible match (shared part number)Velan Valve Corp.
5365-01-474-0806P2-47946-G01 ITEM 8POSSIBLE MATCH
SPACER,RING
Possible match (shared part number)Velan Valve Corp.
4820-01-483-6189P2-47946-G01 ITEM 2POSSIBLE MATCH
DISK,VALVE
Possible match (shared part number)Velan Valve Corp.
4820-01-533-4157P012-335590-G01 ITEM NO. 2POSSIBLE MATCH
DISK,VALVE
Possible match (shared part number)Velan Valve Corp.
4820-01-533-4160P012-335590-G01 ITEM NO. 5POSSIBLE MATCH
STEM,FLUID VALVE
Possible match (shared part number)Velan Valve Corp.
C/1Advisory reference — outside the item-of-supply concept
P J Valves Inc
Related Parts
4820-01-246-6420POSSIBLE MATCH
COLLAR,STEM VALVE
803-2177140 PC 3
4820-01-247-2660POSSIBLE MATCH
DISK,VALVE
803-2177140 PC 2A
4820-01-250-0030POSSIBLE MATCH
GUIDE,VALVE STEM
803-2177140-XX-15
3040-01-458-1510POSSIBLE MATCH
PLATE,RETAINING,SHAFT
5365-01-474-0803POSSIBLE MATCH
RING,RETAINING,INSTRUMENT
0809-020-061
5365-01-474-0806POSSIBLE MATCH
SPACER,RING
P2-47946-G01 ITEM 8
4820-01-483-6189POSSIBLE MATCH
DISK,VALVE
P2-47946-G01 ITEM 2
4820-01-533-4157POSSIBLE MATCH
DISK,VALVE
P012-335590-G01 ITEM NO. 2
4820-01-533-4160POSSIBLE MATCH
STEM,FLUID VALVE
P012-335590-G01 ITEM NO. 5
4820-01-545-2325POSSIBLE MATCH
VALVE,STOP-CHECK
Frequently Asked Questions
What is NSN 4820-01-113-2440?
NSN 4820-01-113-2440 is a Bonnet Retainer,valve, manufactured by Velan Valve Corp., classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-113-2440?
NSN 4820-01-113-2440 has 1 manufacturer part number on file: P2-47946-G01 ITEM 17 (Velan Valve Corp.).
What NSN replaces 4820-01-113-2440?
10 possible matches (shared part number, not a government interchangeability claim): 4820-01-246-6420, 4820-01-247-2660, 4820-01-250-0030. Verify interchangeability with system specifications before substitution.
What are the specifications of P2-47946-G01 ITEM 17?
Key specifications for P2-47946-G01 ITEM 17: General Characteristics Item Description: MATERIAL CAST CARBON STEEL;FIRST END 4.500 IN. OD;SECOND END 2.799 IN. OD;1.062 IN. HEIGHT;2.312-8 ACME 2G RH INTERNAL THREADS;TWO MOUNTING HOLES 0.422 IN. DIA DRILLED THRU WITH 0.500-13 UNC 2B INTERNAL THREADS 0.500 IN. DEEP EQUALLY SPACED 180 DEG APART FOR GLAND STUDS;FLANGE FACE FOUR HOLES 0.422 IN. DIA DRILLED THRU 0.500-13 UNC 2B INTERNAL THREADS EQUALLY SPACED ON A 3.438 IN. BOLT CIRCLE DIA G; End Item Identification: TRIDENT SUBMARINE. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-01-113-2440 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.