Eaton Aerospace Llc · NSN 4820-01-049-5843 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-049-5843 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-049-5843. Primary manufacturer part number: 30045.
4820-01-049-5843 — No Item Name Available illustration
Features
Seat,valve — FSC 4820
Body Outside Diameter: 0.635 INCHES MINIMUM AND 0.638 INCHES MAXIMUM IN
Flange Seat to Disk End Height: 0.135 INCHES MINIMUM AND 0.139 INCHES MAXIMUM IN
Material Document and Classification: QQ-S-763 FED STD SINGLE MATERIAL RESPONSE OVERALL
Seating Surface Shape: FLAT
Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Style Designator: PLAIN FLANGED
Criticality Code Justification: ABKK
Applications
Flow control in piping systems
Pressure regulation
Steam and fluid isolation
Applications requiring Steel Comp 440c Overall construction
General Description
The Seat,valve, cataloged under National Stock Number 4820-01-049-5843, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Eaton Aerospace Llc. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-01-049-5843
Primary Part Number
30045
Item Name
Seat,valve
FSC / FSG
4820 / 48 — No Item Name Available
Manufacturer
Eaton Aerospace Llc
Status
ACTIVE
Body Outside Diameter
0.635 INCHES MINIMUM AND 0.638 INCHES MAXIMUM IN
Flange Seat to Disk End Height
0.135 INCHES MINIMUM AND 0.139 INCHES MAXIMUM IN
Material Document and Classification
QQ-S-763 FED STD SINGLE MATERIAL RESPONSE OVERALL
Seating Surface Shape
FLAT
Surface Treatment Document and Classification
QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Style Designator
PLAIN FLANGED
Criticality Code Justification
ABKK
Hardness Rating
43.0 ROCKWELL C MINIMUM AND 47.0 ROCKWELL C MAXIMUM OVERALL
Body Stepped Inside Diameter
0.187 INCHES NOMINAL THIRD STEP IN
Surface Treatment
PASSIVATE OVERALL
Material
STEEL COMP 440C OVERALL
Under Flange Height
0.631 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
Flange Diameter
0.7490 INCHES MINIMUM AND 0.7495 INCHES MAXIMUM IN
Body Stepped Inside Diameter
0.375 INCHES NOMINAL FIRST STEP IN
Body Stepped Inside Diameter
0.390 INCHES MINIMUM AND 0.410 INCHES MAXIMUM SECOND STEP IN
NSN 4820-01-049-5843 is a Seat,valve, manufactured by Eaton Aerospace Llc, classified under FSC 4820 (No Item Name Available). Status: active.
What are the part numbers for NSN 4820-01-049-5843?
NSN 4820-01-049-5843 has 1 cross-referenced part number: 30045 (Eaton Aerospace Llc).
What NSN replaces 4820-01-049-5843?
There are 11 known substitutes for 4820-01-049-5843: 5910-00-071-9922, 3110-00-100-0325, 5120-00-223-1294 and 8 more. Verify interchangeability with system specifications before substitution.
What are the specifications of 30045?
Key specifications for 30045: Body Outside Diameter: 0.635 INCHES MINIMUM AND 0.638 INCHES MAXIMUM IN; Flange Seat to Disk End Height: 0.135 INCHES MINIMUM AND 0.139 INCHES MAXIMUM IN; Material Document and Classification: QQ-S-763 FED STD SINGLE MATERIAL RESPONSE OVERALL; Seating Surface Shape: FLAT. 15 total characteristics are documented in the Federal Logistics Information System.
✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.