NSN catalog · 90,963 partsCatalog › Hand Tools › FSC 5120 › 5120-00-198-5387
Socket Head Screw Key P/N B18.3
In stock — 11 on our U.S. shelfNSN 5120-00-198-5387 5120001985387 NIIN 001985387
SECO Parts has 11 in stock of NSN 5120-00-198-5387 — Socket Head Screw Key — on our own shelf in Augusta, GA: a stocking supplier, not a broker. Typical price: $25–$55 each — an estimate from the government catalog price and what we have charged for similar parts. Not a quote: request one for your price. Quote lines carry a $50 minimum.
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
- KEY,SOCKET HEAD SCREW
- SECO description
- KEY, SOCKET HEAD SCREW
- Federal supply class
- FSC 5120 — Hand Tools, Nonedged, Nonpowered
Availability & condition
| Condition | Code | Qty on shelf |
|---|---|---|
| New Surplus | NS | 11 |
| Total | 11 |
Quantities are live from SECO's inventory system, not estimated.
Also known as:
5120-00-198-5387 001985387 B18.3 12221 0198 2101 A-A-2473 57042 68021 GGG-K-275 TY1CL1 GGG-K-275
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
- Overall length
- 10.153–10.344 in
- Material
- Overall Steel
- Wrenching surface shape
- Both Ends External Hexagon
- Surface treatment
- Overall Oxide
- Short arm length
- 2.531–2.719 in
- Wrenching surface size
- Both Ends Inches Nominal 1.000
- Features provided
- Short Series
- Long arm length
- 9.156–9.344 in
- Specification/standard data
- Professional/industrial Association Standard 05047-AS-E B18.3
From the federal catalog's item characteristics for this NSN. Confirm critical dimensions against your part or drawing before ordering.
Cross-reference part numbers
B18.3 12221 0198 2101 A-A-2473 57042 68021 GGG-K-275 TY1CL1 GGG-K-275
Shown for identification only. SECO can quote against any of these numbers.
Logistics data
| Source of supply | GSA General Services Administration |
| Acquisition advice code | H Direct delivery from vendor — not stocked by the government; delivered direct from a vendor under a central contract. SECO has 11 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 5120-00-198-5387?
NSN 5120-00-198-5387 (5120001985387) — Socket Head Screw Key: SECO Parts has 11 in stock in Augusta, GA, on our own shelf. It is the NATO Stock Number for socket head screw key in federal supply class 5120 (Hand Tools, Nonedged, Nonpowered).
Is NSN 5120-00-198-5387 available?
SECO Parts has 11 in stock in Augusta, GA — order or request a quote below.
How much does NSN 5120-00-198-5387 cost?
SECO typically prices parts like NSN 5120-00-198-5387 at $25–$55 each: an estimate from the government catalog price and what SECO has charged for similar parts. It is not a quote — request one for your price, usually answered the same business day. Quote lines carry a $50 minimum.
What part numbers cross-reference to NSN 5120-00-198-5387?
Part numbers that cross-reference this NSN include B18.3, 12221, 0198 2101, A-A-2473, 57042, 68021, GGG-K-275 TY1CL1, GGG-K-275. SECO can quote against any of them.
Same item, other stock numbers
Other NSNs the federal catalog names KEY,SOCKET HEAD SCREW. Same name is not the same part: check the part numbers.