The Guide,spring, cataloged under National Stock Number 4820-01-110-9879, 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1 specification, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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
Parameter
Value
NSN
4820-01-110-9879
Item Name
Guide,spring
FSC / FSG
4820 / 48 — Valves, Nonpowered
Status
ACTIVE
General Characteristics Item Description
STEEL
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.
4820-01-121-6314V3D10109-06POSSIBLE MATCH
VALVE,SAFETY RELIEF
Possible match (shared part number)Vacco Industries
4820-01-135-7923V3D10109-01POSSIBLE MATCH
VALVE,SAFETY RELIEF
Possible match (shared part number)Vacco Industries
4820-01-156-0522V3D10109-04POSSIBLE MATCH
VALVE,SAFETY RELIEF
Possible match (shared part number)Vacco Industries
4820-01-182-0779V3D10109-03POSSIBLE MATCH
VALVE,SAFETY RELIEF
Possible match (shared part number)Vacco Industries
4820-01-702-3118V2C10936-3TAPOSSIBLE MATCH
RETAINER,DISK,VALVE
Possible match (shared part number)Vacco Industries
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
V2C11469-3TA
3/2Design control — primary reference
U.S. Government activity
V3D10109
D/9Drawing number reference only
U.S. Government activity
V3D10109-04ITEM6
3/2Design control — primary reference
U.S. Government activity
Related Parts
4820-01-121-6314POSSIBLE MATCH
VALVE,SAFETY RELIEF
V3D10109-06
4820-01-135-7923POSSIBLE MATCH
VALVE,SAFETY RELIEF
V3D10109-01
4820-01-156-0522POSSIBLE MATCH
VALVE,SAFETY RELIEF
V3D10109-04
4820-01-182-0779POSSIBLE MATCH
VALVE,SAFETY RELIEF
V3D10109-03
4820-01-702-3118POSSIBLE MATCH
RETAINER,DISK,VALVE
V2C10936-3TA
Frequently Asked Questions
What is NSN 4820-01-110-9879?
NSN 4820-01-110-9879 is a Guide,spring, classified under FSC 4820, Valves, Nonpowered. Status: active.
What NSN replaces 4820-01-110-9879?
5 possible matches (shared part number, not a government interchangeability claim): 4820-01-121-6314, 4820-01-135-7923, 4820-01-156-0522. Verify interchangeability with system specifications before substitution.
What are the specifications of 4820-01-110-9879?
Key specifications for 4820-01-110-9879: General Characteristics Item Description: STEEL; End Item Identification: VALVE,RELIEF. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-01-110-9879 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.