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NSN 3040-01-204-8018Government record, cited
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Flange, Shaft, Cylinder3040-01-204-8018

NSN 3040-01-204-8018 · NIIN 012048018
FSC 3040 — Miscellaneous Power Transmission Equipment · FSG 30 — Mechanical Power Transmission Equipment
Government record, cited
Also searched as  3040-01-204-8018 · 3040012048018 · NIIN 012048018 · 01-204-8018 · FSC 3040 Miscellaneous Power Transmission Equipment · SSBN640-522-2119045 · SSBN640-522-2119045 PIECE 14 · 76682-37X8 PIECE 14 · 76682-37X8
Nearby stock numbers  ·
Features
  • Flange,shaft,cylinder — FSC 3040
  • General Characteristics Item Description: CORROSION RESISTING STEEL FED-SPEC QQ-S-766 TYPE 316L,CONDITION A; FLANGE 2.125 IN. SQUARE,0.935 IN. THK,4 HOLES 0.406 IN. ID; 1ST END 0.625 IN. ID,COUNTERBORE TO 0.843; 2ND END 1.121 IN. OD,0.625 IN. ID,O-RING GROOVE 0.188 IN. WIDE,0.901 IN. ID; 1.750 IN. O/A LG IN
Identification
  • NSN: 3040-01-204-8018
  • NIIN: 012048018
  • FSC: 3040 — Miscellaneous Power Transmission Equipment
  • FSG: 30 — Mechanical Power Transmission Equipment
General Description

The Flange,shaft,cylinder, cataloged under National Stock Number 3040-01-204-8018, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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
ParameterValue
NSN3040-01-204-8018
Item NameFlange,shaft,cylinder
FSC / FSG3040 / 30 — Miscellaneous Power Transmission Equipment
StatusACTIVE
General Characteristics Item DescriptionCORROSION RESISTING STEEL FED-SPEC QQ-S-766 TYPE 316L,CONDITION A; FLANGE 2.125 IN. SQUARE,0.935 IN. THK,4 HOLES 0.406 IN. ID; 1ST END 0.625 IN. ID,COUNTERBORE TO 0.843; 2ND END 1.121 IN. OD,0.625 IN. ID,O-RING GROOVE 0.188 IN. WIDE,0.901 IN. ID; 1.750 IN. O/A LG IN
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 5
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
3040-01-204-801976682-37X8 PIECE 3 POSSIBLE MATCH
CYLINDER,UPPER
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
3040-01-204-802076682-37X8 PIECE 1 POSSIBLE MATCH
CYLINDER,LOWER
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
3040-01-204-807476682-37X8 PIECE 7 POSSIBLE MATCH
PISTON,LINEAR ACTUATING CYLINDER
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
3040-01-204-807676682-37X8 PIECE 21 POSSIBLE MATCH
ROD,PISTON,LINEAR ACTUATING CYLI
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
3040-01-204-807776682-37X8 PIECE 8 POSSIBLE MATCH
ROD,PISTON,LINEAR ACTUATING CYLI
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
ReferenceMeaning
SSBN640-522-2119045 D/9 Drawing number reference only
U.S. Government activity
SSBN640-522-2119045 PIECE 14 5/2 Secondary reference
U.S. Government activity
76682-37X8 PIECE 14 3/2 Design control — primary reference
U.S. Government activity
76682-37X8 D/9 Drawing number reference only
U.S. Government activity
Related Parts
3040-01-204-8019POSSIBLE MATCH
CYLINDER,UPPER
76682-37X8 PIECE 3
3040-01-204-8020POSSIBLE MATCH
CYLINDER,LOWER
76682-37X8 PIECE 1
3040-01-204-8074POSSIBLE MATCH
PISTON,LINEAR ACTUATING CYLINDER
76682-37X8 PIECE 7
3040-01-204-8076POSSIBLE MATCH
ROD,PISTON,LINEAR ACTUATING CYLI
76682-37X8 PIECE 21
3040-01-204-8077POSSIBLE MATCH
ROD,PISTON,LINEAR ACTUATING CYLI
76682-37X8 PIECE 8

Frequently Asked Questions

What is NSN 3040-01-204-8018?

NSN 3040-01-204-8018 is a Flange,shaft,cylinder, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.

What NSN replaces 3040-01-204-8018?

5 possible matches (shared part number, not a government interchangeability claim): 3040-01-204-8019, 3040-01-204-8020, 3040-01-204-8074. Verify interchangeability with system specifications before substitution.

What are the specifications of 3040-01-204-8018?

Key specifications for 3040-01-204-8018: General Characteristics Item Description: CORROSION RESISTING STEEL FED-SPEC QQ-S-766 TYPE 316L,CONDITION A; FLANGE 2.125 IN. SQUARE,0.935 IN. THK,4 HOLES 0.406 IN. ID; 1ST END 0.625 IN. ID,COUNTERBORE TO 0.843; 2ND END 1.121 IN. OD,0.625 IN. ID,O-RING GROOVE 0.188 IN. WIDE,0.901 IN. ID; 1.750 IN. O/A LG IN. 1 specification is documented in the U.S. Government catalog.

Is NSN 3040-01-204-8018 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.

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✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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