PartsTable TECHNICAL DATA SHEET
NSN 4820-01-209-3403Government record, cited

Cap, Connecting Rod4820-01-209-3403

NSN 4820-01-209-3403 · NIIN 012093403
FSC 4820 — Valves, Nonpowered · FSG 48 — Valves
Government record, cited
Also searched as  4820-01-209-3403 · 4820012093403 · NIIN 012093403 · 01-209-3403 · FSC 4820 Valves, Nonpowered · 71553-78X9 PIECE 7 · 71553-78X9 · SSN671-515-2047969 PIECE 7 · SSN671-515-2047969
Nearby stock numbers  ·
Features
  • Cap,connecting Rod — FSC 4820
  • General Characteristics Item Description: STEEL,MIL-S-16216
Identification
  • NSN: 4820-01-209-3403
  • NIIN: 012093403
  • FSC: 4820 — Valves, Nonpowered
  • FSG: 48 — Valves
General Description

The Cap,connecting Rod, cataloged under National Stock Number 4820-01-209-3403, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves 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1 specification, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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
NSN4820-01-209-3403
Item NameCap,connecting Rod
FSC / FSG4820 / 48 — Valves, Nonpowered
StatusACTIVE
General Characteristics Item DescriptionSTEEL,MIL-S-16216
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 3
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-216-413871553-78X9 PIECE 16 POSSIBLE MATCH
CRANKSHAFT,VALVE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4820-01-218-004171553-78X9 PIECE 8 POSSIBLE MATCH
ROD,CONNECTING,VALVE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
5306-01-229-7963SSN671-515-2047969 PIECE 4 POSSIBLE MATCH
BOLT,SHOULDER
Possible match (shared part number)Naval Ship Systems Command
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
ReferenceMeaning
71553-78X9 PIECE 7 3/2 Design control — primary reference
U.S. Government activity
71553-78X9 D/9 Drawing number reference only
U.S. Government activity
SSN671-515-2047969 PIECE 7 5/2 Secondary reference
U.S. Government activity
SSN671-515-2047969 D/9 Drawing number reference only
U.S. Government activity
Related Parts
4820-01-216-4138POSSIBLE MATCH
CRANKSHAFT,VALVE
71553-78X9 PIECE 16
4820-01-218-0041POSSIBLE MATCH
ROD,CONNECTING,VALVE
71553-78X9 PIECE 8
5306-01-229-7963POSSIBLE MATCH
BOLT,SHOULDER
SSN671-515-2047969 PIECE 4

Frequently Asked Questions

What is NSN 4820-01-209-3403?

NSN 4820-01-209-3403 is a Cap,connecting Rod, classified under FSC 4820, Valves, Nonpowered. Status: active.

What NSN replaces 4820-01-209-3403?

3 possible matches (shared part number, not a government interchangeability claim): 4820-01-216-4138, 4820-01-218-0041, 5306-01-229-7963. Verify interchangeability with system specifications before substitution.

What are the specifications of 4820-01-209-3403?

Key specifications for 4820-01-209-3403: General Characteristics Item Description: STEEL,MIL-S-16216. 1 specification is documented in the U.S. Government catalog.

Is NSN 4820-01-209-3403 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.
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