NSN catalog · 90,963 partsCatalog › Plumbing, Heating, and Waste Disposal Equipment › FSC 4520 › 4520-00-273-1061
Ventilation Duct Type Heater P/N S3802-66970-21M
In stock — 6 on our U.S. shelfNSN 4520-00-273-1061 4520002731061 NIIN 002731061
SECO Parts has 6 in stock of NSN 4520-00-273-1061 — Ventilation Duct Type Heater — on our own shelf in Augusta, GA: a stocking supplier, not a broker. Government catalog (FEDLOG) price: $204.27 per each — a public reference, not our price. We quote each request, usually the same business day, and surplus parts often quote below or above it.
One part, one step — answered within one business day. Several parts? and send them together.
- Ships in 1–3 business days from Augusta, GA
- Certificate of Conformance on request
- PO, GPC & major cards
- $50 minimum order — smaller requests still get a quote
- 30-day returns · terms
- FLIS item name
- HEATER,VENTILATION,DUCT TYPE
- SECO description
- HEATER,VENTILATION,
- Federal supply class
- FSC 4520 — Space and Water Heating Equipment
Availability & condition
| Condition | Code | Qty on shelf |
|---|---|---|
| New Surplus | NS | 6 |
| Total | 6 |
Quantities are live from SECO's inventory system, not estimated.
Also known as:
4520-00-273-1061 002731061 S3802-66970-21M S3802-66970S21M NSTDSIZES21M S21M
Get a quote
Build a list across as many parts as you need, send it once, get one quote back — answered within one business day, usually the same day. POs and GPC welcome. $50 minimum order.
More to tell us? Need-by date, ship-to, your own RFQ document
Specifications
- Maximum pressure limit
- Pounds Per Square Inch Gage 35.0
- Depth
- 13.750 in (nominal)
- Special features
- Tube Has 60 Fins Per FT; Conforms to MIL-H-16235C
- Height
- 6.250 in (nominal)
- Surface treatment
- Zinc
- Heat outlet quantity
- 1
- Heat delivery direction
- Horizontal
- Heat directing device
- Radial Diffuser-Vertical Vanes
- Duct height
- Inches 3.250
- Mounting type
- Ventilation Duct
- Heat discharge outlet type
- Stationary
- Heat medium type
- Hot Water or Steam
- Duct width
- Inches 6.000
- Heating element type
- Hot Water Coil or Steam Coil
- Inclosure material
- Steel
- Width
- 13.750 in (nominal)
From the federal catalog's item characteristics for this NSN. Confirm critical dimensions against your part or drawing before ordering.
Cross-reference part numbers
S3802-66970-21M S3802-66970S21M NSTDSIZES21M
Also referenced as
S21M
Older, superseded, advisory or drawing numbers the federal catalog associates with this NSN — the ones in an old manual. They find the item; confirm the current part number when you order.
Shown for identification only. SECO can quote against any of these numbers.
Logistics data
| Source of supply | SMS DLA Land and Maritime, Columbus, Ohio |
| Acquisition advice code | J Not stocked, centrally procured — the government does not stock this item; it is procured only when a requisition arrives. SECO has 6 on the shelf |
| Unit of issue | EA each |
| Demilitarization code | A Demilitarization not required — non-munitions-list item |
| Controlled inventory code | U Unclassified |
| Hazardous material indicator | N No hazardous material |
Source: public FLIS/PUB LOG cataloging data.
Why buy from SECO
These quantities sit on our own shelves — we are a stocking supplier, not a broker sourcing after you order. Condition-coded stock, formal quotes with NSN/PN on the paperwork, POs and GPC welcome, fast U.S. shipping.
In business since 1951 · 30,000+ contracts completed · about SECO & our policies · more questions answered
FAQ
What is NSN 4520-00-273-1061?
NSN 4520-00-273-1061 (4520002731061) — Ventilation Duct Type Heater: SECO Parts has 6 in stock in Augusta, GA, on our own shelf. It is the NATO Stock Number for ventilation duct type heater in federal supply class 4520 (Space and Water Heating Equipment).
Is NSN 4520-00-273-1061 available?
SECO Parts has 6 in stock in Augusta, GA — order or request a quote below.
How much does NSN 4520-00-273-1061 cost?
The government catalog (FEDLOG) lists NSN 4520-00-273-1061 at $204.27 per each. That is a public reference, not SECO's price: SECO quotes each request, usually the same business day, and surplus parts often quote below or above it.
What part numbers cross-reference to NSN 4520-00-273-1061?
Part numbers that cross-reference this NSN include S3802-66970-21M, S3802-66970S21M, NSTDSIZES21M. It is also referenced by older, superseded or advisory numbers: S21M. SECO can quote against any of them.
Same item, other stock numbers
Other NSNs the federal catalog names HEATER,VENTILATION,DUCT TYPE. Same name is not the same part: check the part numbers.