NSN 4320-01-057-6937 · NIIN 010576937 · Part number 63-E-33PC46
Eastern Industrial Products, Inc. · FSC 4320 — Power and Hand Pumps · FSG 43 — Pumps and Compressors · CAGE 72038
Government record, cited
NSN 4320-01-057-6937 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-057-6937. Manufacturer of record part number: 63-E-33PC46.
Also searched as4320-01-057-6937 ·
4320010576937 ·
NIIN 010576937 ·
01-057-6937 ·
FSC 4320 Power and Hand Pumps · CAGE 72038 · 63-E-33PC46 · 63-E-33
General Characteristics Item Description: CRES 304,ASTM-4276
1 manufacturer part number on file
Manufacturer of record: Eastern Industrial Products, Inc.
Identification
NSN: 4320-01-057-6937
NIIN: 010576937
FSC: 4320 — Power and Hand Pumps
FSG: 43 — Pumps and Compressors
Primary part number: 63-E-33PC46
Manufacturer: Eastern Industrial Products, Inc.
General Description
The Valve,bleeder,pump, cataloged under National Stock Number 4320-01-057-6937, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Eastern Industrial Products, Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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
4320-01-057-6937
Primary Part Number
63-E-33PC46
Item Name
Valve,bleeder,pump
FSC / FSG
4320 / 43 — Power and Hand Pumps
Manufacturer
Eastern Industrial Products, Inc.
Status
ACTIVE
General Characteristics Item Description
CRES 304,ASTM-4276
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 Items5
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
3040-01-057-800163-E-33PC5X6X7X8X9X10POSSIBLE MATCH
CONNECTOR ASSEMBLY
Possible match (shared part number)Eastern Industrial Products, Inc.
4320-01-104-889563-E-33 PIECE 13POSSIBLE MATCH
CAP,PACKING GLAND,PUMP
Possible match (shared part number)Eastern Industrial Products, Inc.
4320-01-168-828463-E-33POSSIBLE MATCH
PUMP,RECIPROCATING
Possible match (shared part number)Eastern Industrial Products, Inc.
4820-01-182-717063-E-33 PIECE 45POSSIBLE MATCH
CAP,VALVE
Possible match (shared part number)Eastern Industrial Products, Inc.
4310-01-189-094663-E-33 PIECE 47POSSIBLE MATCH
SCALE,ADJUSTMENT
Possible match (shared part number)Eastern Industrial Products, Inc.
NSN 4320-01-057-6937 is a Valve,bleeder,pump, manufactured by Eastern Industrial Products, Inc., classified under FSC 4320, Power and Hand Pumps. Status: active.
What part numbers are listed for NSN 4320-01-057-6937?
NSN 4320-01-057-6937 has 1 manufacturer part number on file: 63-E-33PC46 (Eastern Industrial Products, Inc.).
What NSN replaces 4320-01-057-6937?
5 possible matches (shared part number, not a government interchangeability claim): 3040-01-057-8001, 4320-01-104-8895, 4320-01-168-8284. Verify interchangeability with system specifications before substitution.
What are the specifications of 63-E-33PC46?
Key specifications for 63-E-33PC46: General Characteristics Item Description: CRES 304,ASTM-4276; End Item Identification: CHEMICAL PROPORTIONING PUMP,72038,MODEL SN-10-58. 1 specification is documented in the U.S. Government catalog.
Is NSN 4320-01-057-6937 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.