FSC 4520 — Space and Water Heating Equipment · FSG 45 — Plumbing, Heating, and Waste Disposal
Government record, cited
Also searched as4520-00-272-8663 ·
4520002728663 ·
NIIN 002728663 ·
00-272-8663 ·
FSC 4520 Space and Water Heating Equipment
Nearby stock numbers← 4520-00-272-8662 Elbow, Air Conditioning-Heating
·
4520-00-272-8664 Elbow, Air Conditioning-Heating →
Features
Elbow,air Conditioning-Heating — FSC 4520
Adjustability Feature: INCLUDED
Style Designator: ADJUSTABLE
Sheet Metal Gage Size: 24
Nondefinitive Spec/std Data: 2 TYPE AND 8 IN. DIA SIZE IN
Material: STEEL
Angle in Deg: 90.0
Construction Type: SINGLE
Identification
NSN: 4520-00-272-8663
NIIN: 002728663
FSC: 4520 — Space and Water Heating Equipment
FSG: 45 — Plumbing, Heating, and Waste Disposal
General Description
The Elbow,air Conditioning-Heating, cataloged under National Stock Number 4520-00-272-8663, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government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
4520-00-272-8663
Item Name
Elbow,air Conditioning-Heating
FSC / FSG
4520 / 45 — Space and Water Heating Equipment
Status
ACTIVE
Adjustability Feature
INCLUDED
Style Designator
ADJUSTABLE
Sheet Metal Gage Size
24
Nondefinitive Spec/std Data
2 TYPE AND 8 IN. DIA SIZE IN
Material
STEEL
Angle in Deg
90.0
Construction Type
SINGLE
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 Items7
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4520-00-272-86649-24-302POSSIBLE MATCH
ELBOW,AIR CONDITIONING-HEATING
Possible match (shared part number)Gray Metal Products
4520-00-273-1244POSSIBLE MATCH
PIPE,AIR CONDITIONING-HEATING
Possible match (shared part number)
4520-00-273-1245POSSIBLE MATCH
PIPE,AIR CONDITIONING-HEATING
Possible match (shared part number)
4520-00-273-3391POSSIBLE MATCH
ELBOW,AIR CONDITIONING-HEATING
Possible match (shared part number)
4520-00-273-3392POSSIBLE MATCH
PIPE,AIR CONDITIONING-HEATING
Possible match (shared part number)
4520-00-277-8339POSSIBLE MATCH
PIPE,AIR CONDITIONING-HEATING
Possible match (shared part number)
4520-00-287-3658POSSIBLE MATCH
ELBOW,AIR CONDITIONING-HEATING
Possible match (shared part number)
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
MILP551
4/1Identification reference
U.S. Government activity
Related Parts
4520-00-272-8664POSSIBLE MATCH
ELBOW,AIR CONDITIONING-HEATING
9-24-302
4520-00-273-1244POSSIBLE MATCH
PIPE,AIR CONDITIONING-HEATING
4520-00-273-1245POSSIBLE MATCH
PIPE,AIR CONDITIONING-HEATING
4520-00-273-3391POSSIBLE MATCH
ELBOW,AIR CONDITIONING-HEATING
4520-00-273-3392POSSIBLE MATCH
PIPE,AIR CONDITIONING-HEATING
4520-00-277-8339POSSIBLE MATCH
PIPE,AIR CONDITIONING-HEATING
4520-00-287-3658POSSIBLE MATCH
ELBOW,AIR CONDITIONING-HEATING
Frequently Asked Questions
What is NSN 4520-00-272-8663?
NSN 4520-00-272-8663 is a Elbow,air Conditioning-Heating, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
What NSN replaces 4520-00-272-8663?
7 possible matches (shared part number, not a government interchangeability claim): 4520-00-272-8664, 4520-00-273-1244, 4520-00-273-1245. Verify interchangeability with system specifications before substitution.
What are the specifications of 4520-00-272-8663?
Key specifications for 4520-00-272-8663: Adjustability Feature: INCLUDED; Style Designator: ADJUSTABLE; Sheet Metal Gage Size: 24; Nondefinitive Spec/std Data: 2 TYPE AND 8 IN. DIA SIZE IN. 7 specifications are documented in the U.S. Government catalog.
Is NSN 4520-00-272-8663 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.